Answers
The flexor withdrawal and crossed extensor use the terms ipsilateral and contralateral is
During а withdrаwаl reflex, the flexors in the withdrаwing limb contrаct аnd the extensors relаx, while in the other limb, the opposite occurs аs pаrt of the crossed extensor reflex.Besides shifting the body weight to the other side, the reflex pаthwаy is аlso аssociаted with leg coordinаtion when wаlking by flexing muscle on one side, while extending muscle on the other side.Spinаl reflexes include the stretch reflex, the Golgi tendon reflex, the crossed extensor reflex, аnd the withdrаwаl reflex.
The crossed extensor reflex is а withdrаwаl reflex where the contrаlаterаl (opposite side) limb mаkes up for the loss of support creаted when the ipsilаterаl (sаme side) limb withdrаws from а pаinful externаl stimulus. When this reflex is occurring, flexors in the withdrаwing limb would contrаct аnd extensors relаx, while the opposite would occur in the contrаlаterаl limb.The withdrаwаl reflex, аlso known аs the flexor withdrаwаl reflex or nociceptive flexion reflex, is а spinаl reflex thаt functions in protecting the body from dаmаging stimuli. This reflex is polysynаptic, аnd involves the stimulаtion of аssociаtion, sensory, аnd motor neurons.Your question is incomplete, but most probably your full question and answer can be seen in the Attachment.
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Related Questions
if two nations specialize according to their individual comparative advantages and engage in trade, then which of the following must be true?ANations would be better off if they were self-sufficient.BIf one nation gains from trade with the other nation, then the other nation will lose.C. Both nations can consume beyond their individual production produce.D. Both nations can consume only what they produceE. Both nations will lose from tradePls help asap
Answers
When two nations specialize according to their individual comparative advantages and engage in trade, then both nations can consume beyond their individual production produce (C)
A transaction involving a good or service that takes place between at least two countries is considered to be an example of international trade. The transactions may involve either imports or exports. A good or service that is carried into the country in which it is produced is considered an import. A good or service that is sold in a country outside of its place of origin is referred to as an export.
International trade and the accompanying financial transactions are typically conducted for the purpose of providing a nation with commodities that it lacks in exchange for those that it produces in abundance; such transactions, functioning in conjunction with other economic policies, tend to improve the standard of living in a nation. Efforts to encourage freer trade between nations take up a significant portion of the modern chapter in the history of international relations.
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In garden peas, long stems are dominant to short stems., a seeds are dominant to green seeds. 100 long/yelloW pea plants, all of which had on stems, and yellow see are interbred (bred to each other). 1600 progeny result. Please answer the following questions about these parent.progeny
Answers
In garden peas, long stems are dominant to short stems., a seeds are dominant to green seeds than 9 long yellow : 3 long green : 3 short yellow : 1 short green
What happens in the particular case?We must interbred pea plants with the long stems and the yellow seeds (L_Y_), but they had a short green parent (llyy) that could have only produced ly gametes, so our plants are heterozygous LlYy.
We interbred them LlYy x LlYy. If the two genes are unlinked, this is a typical di hybrid cross and from Mendel's law of independent assortment we know that the offspring will have the following phenotypic ratios.
Therefore, In garden peas, long stems are dominant to short stems., a seeds are dominant to green seeds than 9 long yellow : 3 long green : 3 short yellow : 1 short green
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You have just identified a novel microbe that thrives in a swampy region with a large production of marsh (methane) gas. You hypothesize that this microbe belongs to Domain O Archaea O Protists. O Eukarya O Bacteria.
Answers
Based on your description, it is likely that the microbe you identified belongs to the Domain Archaea, as this domain consists of single-celled organisms that lack cell nuclei and are prokaryotes.
Archaea are well-adapted to extreme environments, such as those with high concentrations of methane present in marshlands. Additionally, Archaea have been found to have anaerobic metabolic pathways, which could help them thrive in such an environment.
Domain Archaea is a domain of prokaryotic organisms that are distinct from bacteria and other prokaryotes. Archaea are single-celled organisms that are typically found in extreme environments, such as hot springs, deep sea vents, and highly acidic or alkaline environments.
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URGENT HELP! BIOLOGY! please
Without a vaccine, how many people in the United States are estimated to die from Covid-19before herd immunity is acquired
(if the virus does not mutate further)?
Answers
Answer:
Explanation:
It is difficult to estimate the exact number of people who will die from Covid-19 before herd immunity is acquired without a vaccine, as it depends on multiple factors such as the prevalence of the virus, the behavior and actions of individuals, the effectiveness of public health measures, and the response of the healthcare system.
However, based on the experiences of other countries and the projections made by public health experts, it is estimated that a significant number of people could die from Covid-19 if a vaccine is not made widely available and effective measures are not taken to control its spread.
It is important to note that the acquisition of herd immunity through widespread illness and death is not a desirable or ethical approach to controlling the pandemic, and that widespread vaccination is the most effective way to protect public health and save lives.
Which of the following hormones stimulates proliferation of red blood cells in red bone marrow?
A) erythropoietin (EPO)
B) thrombopoietin (TPO)
C) human growth hormone (hGH)
D) calcitonin (CT)
E) follicle-stimulating hormone (FSH)
Answers
Erythropoietin (EPO) hormones stimulates proliferation of red blood cells in red bone marrow.
What is red blood cells?Red blood cells are the most frequent form of blood cell and the vertebrate's primary mechanism of distributing oxygen to bodily tissues—via blood flow through the circulatory system. Red blood cells are responsible for transporting oxygen from our lungs to the rest of our body. Then they return, carrying carbon dioxide back to our lungs to be breathed. A kind of blood cell present in the blood that is produced in the bone marrow. Red blood cells contain hemoglobin, a protein that transports oxygen from the lungs to all areas of the body.
Here,
Erythropoietin (EPO) hormones encourage the growth of red blood cells in the bone marrow.
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in an srs of sie n what is true about the sampling distribution of p^ when the sampel size n increases
Answers
The truth about the phat sample distribution, the variability decreases as the sample size n increases.
The sample proportion (p hat) is a UNBIASED ESTIMATOR of because the mean of the sampling distribution of (p hat) is always equal to the parameter (p). Because n appears in the denominator of the standard deviation formula, the standard deviation of (p) hat decreases as the sample size n increases. That is, in larger samples, (p hat) is less variable. Because the sample size n is under the square root sign, we must take a sample four times as large, not just twice as large, to cut the standard deviation in half.
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Which of the following statements about inheritance patterns of X-linked recessive traits in humans is FALSE?A mating between a recessive male and a homozygous dominant female will produce only progeny with the dominant phenotype.Only males will display the recessive trait.A mating between a dominant male and a homozygous recessive female will produce only male progeny with the recessive phenotype and female progeny with the dominant phenotype.Many more males than females will display the recessive trait.
Answers
C: "A mating between a dominant male and a homozygous recessive female will create only male progeny with the recessive phenotype and female progeny with the dominant phenotype" is false.
X-linked recessive traits are traits determined by genes located on the X chromosome. In humans, females have two X chromosomes while males have only one X chromosome. This means that the expression of X-linked traits is influenced by the sex of the individual.
So the correct answer is: A mating between a dominant male and a homozygous recessive female will produce half of the male progeny with the recessive phenotype and half of the female progeny with the dominant phenotype.
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Thomas is an agriscientist trying to discover the reason a wheat crop isn't thriving. If Thomas uses a deductive approach, how MOST likely will he start the process of thinking through the problem?
He will begin with the result of the failing crop and work back from there.
He will walk around the field to see what patterns he can observe that might be the cause.
He will look at the steps in the processes used to plant and cultivate the crop.
He will form a committee of agriscientists to discuss why the problem might be occurring.
Answers
i am working on a answer
Answer:He will begin with the result of the failing crop and work back from there.
Explanation:
PLEASE HELP!!!!!!!!!!!!!!!!!! Dr. Budai is determined to find the best solution to help the hotel, the new species, the butterflies, and the flowering plants coexist in the same location. She is hoping to accomplish this goal by genetically modifying one of the three organisms: the new species, the butterfly, or the flowering plant.
Now that you have explored modifying a trait for one of the species in the previous activity, answer the following questions.
question 1.What was the species and trait you investigated?
question 2.Why do you think the modification you explored would best help the organisms and hotel coexist? Explain your reasoning.
question 3. Dr. Budai is hoping you can help design a different modification from the one you already explored. What modification would you suggest? Do you think it would be more or less beneficial than the modification you discussed in Question 2? Explain your reasoning.
Answers
The answers include the following:
The species and trait you investigated was the the flowering plant and the trait was the bright colored flowers. The modification I explored would best help the organisms and hotel coexist such that it will ensure that the hotel is beautified and the organism will be be attracted to the pollen grains as food.The modification I would suggest is for more nectar to be present and it would be more beneficial due to more pollination occurring.What is Pollination?This is referred to as the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilization and the production of seeds.
The modification would best help the organisms and hotel coexist such that it will ensure that the hotel is beautified and provide it with an aesthetic feeling by the visitors.
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grounded theory research can be distinguished from experimental research in which of the following ways?
Answers
Grounded theory research can be distinguished from experimental research in the following ways it uses emerging designs
The research method is a procedure, method or scientific steps used to obtain data as a fulfillment of research objectives.
Grounded theory is a qualitative research method that uses a set of systematic procedures to develop a theory about a phenomenon. The principle of research using the grounded theory method is actually not inductive or deductive, but by combining inductive and deductive. This theory was built from the data collected after being analyzed so that it has a emerging design use which different from experimental research design which uses a scientific approach using two sets of variables. So, grounded theory research can be distinguished from experimental research in the following ways it uses emerging designs.
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cells alive animal cell worksheet
Answers
The vacuoles, cytoplasm, vesicles, centrioles, ribosomes, nuclear membrane, cell membrane, cytoskeleton, mitochondria, endoplasmic reticulum, nucleolus, Golgi apparatus, and nucleus are the thirteen components of an animal cell.
Which of the following cell organelles make up a normal animal cell?Cellular membrane a thin, lipid- and protein-rich membrane covering the cell that is semipermeable. Nuclear membrane, centrosome, lysosome, cytoplasm, golgi apparatus, nucleus, and others,Mitochondrion.The vacuoles, cytoplasm, vesicles, centrioles, ribosomes, nuclear membrane, cell membrane, cytoskeleton, mitochondria, endoplasmic reticulum, nucleolus, Golgi apparatus, and nucleus are the thirteen components of an animal cell.Because they are components of the protoplast of the cell and support a variety of cellular metabolic processes, the nucleus, cytoplasm, and mitochondria are the live components of the cell.Skin cells, muscle cells, blood cells, fat cells, nerve cells, sex cells, and stem cells are a few examples of common animal cell types.To learn more about animal cell refer to:
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A chemist was decomposing ammonium hydroxide using the apparatus given above to form two products A and B. Product A was in gaseous form and was collected in the test tube attached to the right limb of the U tube. Product B was in liquid form and was absorbed by calcium oxide in the U tube during the experiment
Which of the following options correctly lists Product A and Product B respectively?
Answers
Based on the information provided, it can be concluded that Product A is in Gaseous Form while product B is in Liquid Form.
What happen when ammonium hydroxide is decomposed?When ammonium hydroxide (NH4OH) is decomposed, it undergoes a chemical reaction that results in the formation of two products: nitrogen gas (N2) and water (H2O). The chemical equation for the decomposition of ammonium hydroxide is:
2NH4OH → N2 + 2H2O + heat
What type of reaction is decomposition of ammonium hydroxide?This reaction is an exothermic reaction, meaning that heat is released during the reaction. The heat can be used to drive the reaction forward, but it also needs to be controlled to prevent the reaction from becoming too energetic and damaging the equipment.
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if a man with blood group ab marries a woman of blood group a whose father was of blood group o, what different blood groups can this man and this woman expect their children to belong to? what genotypes could the children have? what are the genotypes of the man and of the woman? draw a punnet square showing the possible genotypes of their children. note the phenotype for each genotype.
Answers
An AB blood type guy and an O blood type woman got married. List the progeny's potential blood types. The alleles involved in this inheritance should be listed.
The children of a man with blood type AB and a woman with blood type O will have blood types A and B. One-half of each blood type will be present. This is due to the 'A' and 'B' alleles on the 'O' gene being dominant alleles. If a guy marries a woman who has blood type AB while being homozygous for blood type O, his genotype will be OO. The child will then have blood type A or B based on the punnet square.
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in mendelian inheritance patterns, which of the following statements is accurate about recessive alleles? check all that apply. A recessive allele will have no noticeable effects on an organism's phenotype if a dominant allele is present A recessive allele will never have a noticeable effect on an organism's phenotype A recessive allele is a weaker form of a dominant allele A recessive allele will have an effect on an organism's phenotype if the individual is homozygous for the recessive allele A recessive allele will have an effect on an organism's phenotype only if the individual is heterozygous Recessive alleles can be either on the maternal chromosome or the paternal chromosome
Answers
A recessive allele will basically show no effect when a dominant allele is present. This allele is basically a weaker form of dominant allele. It only shows effect when it is present in the homozygous condition and can be present on either paternal or the maternal chromosome.
The alleles can be either dominant or recessive. A dominant allele is always expressed when it is present but a recessive allele only gets expressed in the absence of the dominant alleles. This allele is basically weaker than the dominant allele.
The recessive allele can be present on the paternal chromosome or on the maternal chromosome. This allele will not be expressed in a heterozygous condition. It will only show effect when the individual is homozygous for that particular recessive allele.
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A group of students observe a sample of water under a microscope. The students see a single-celled organism digesting another cell. The single-celled organism contains a nucleus and other organelles. In which kingdom would this organism most likely be classified?
Question 2 options:
Plantae
Animalia
Protista
Fungi
Answers
This organism most likely would be classified in the kingdom Protista.
What is kingdom Protista?Kingdom Protista is a taxonomic classification that encompasses a diverse group of single-celled organisms. These organisms can have a nucleus and other organelles, and are capable of performing functions such as photosynthesis, digestion, and movement. Protists are not classified as plants, animals, or fungi, but as a separate kingdom because of their unique characteristics.
Some protists are unicellular, while others are multicellular. They can be both autotrophic and heterotrophic, meaning they can produce their own food and/or feed on other organisms. Protists play important roles in the food chain and in ecosystems, and some species can cause diseases in plants and animals. Overall, kingdom Protista is a diverse and important group of organisms.
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How are birds different from mammals ?
Answers
Answer:
there is a major diff between birds and mammals in the female reproductive system as birds produce large yolk-filled eggs. The precursors of the yolk r synthesized by the liver. Another diff is that there is a single ovary and oviduct in bird
Explanation:
Answer:
The difference is the female reproductive system as birds produce large yolk filled eggs
humans and whales do not look similar and yet are much more closely related than dolphins and sharks
Answers
The extraction of energy from glycogen occurs in several steps. The step following glycogenolysis would beGlycolysis
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The extraction of energy from glycogen occurs in several steps. The step following glycogenolysis would be Glycolysis.
Glycogenolysis is the breakdown of glycogen into glucose molecules, which can be used as a source of energy. Once the glycogen has been broken down, the glucose molecules enter the glycolysis pathway. In glycolysis, glucose is converted into pyruvate through a series of enzyme-catalyzed reactions, generating energy in the form of ATP. The process of glycolysis does not require oxygen, making it an important source of energy for cells when oxygen is limited.
Through these pathways, the energy stored in glycogen can be efficiently extracted and used by cells to support their various functions.
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HELPPP PLEASE 40 POINTS
1. Which technologies contributed to genetic modification, but were not directly involved in the process? How did these contribute to the genetic modification of plants?
2. Why did the Green Revolution not improve conditions in Africa?
3. What factors have contributed to the food surplus in the developed world? Explain.
4. Why has radiation mutagenesis fallen out of favor?
5. Explain how the understanding of DNA has progressed.
Answers
Technologies such as biotechnology, molecular biology, and genetic engineering have contributed to genetic modification by providing methods for manipulating plant genes.
1. Which technology helped to advance genetic engineering?Gene sequencing, computer modeling, and bioinformatics are three technologies that have aided genetic engineering but are not directly involved in the process. These technologies have made it possible to identify important genes, design strategies for changing them, and monitor the results of these changes.
2. Why didn't the Green Revolution improve conditions in Africa?Because the Green Revolution was not extensively adopted, conditions in Africa did not improve. Due to poor infrastructure, restricted access to funding, and a lack of expert assistance, high-yield crop varieties and the fertilizer, insecticides, and irrigation systems required to support them were not commonly used in Africa.
3. What elements are responsible for the food excess in the industrialized world?Increased agricultural productivity, agricultural technology developments, improved agricultural practices, and higher crop yields are all factors that have contributed to the food surplus in the developed world. These developments have made food production and storage more efficient, which has resulted in an abundance of food that is now accessible to the general people.
4. Why is radiation mutagenesis becoming less popular?Due to the possible hazards involved, radiation mutagenesis has lost appeal. By subjecting organisms to radiation, it is possible to cause DNA changes that may have unforeseen and potentially harmful effects.
5. Describe the evolution of our knowledge of DNA.Over the past several decades, there has been a substantial advancement in our understanding of DNA. The complete human genome has been sequenced, allowing researchers to pinpoint the precise genes that cause particular features and diseases.
Additionally, they have created methods for modifying the genetic code, enabling the creation of genetically modified species. Additionally, they have been able to develop more precise models of interspecies evolutionary interactions using gene sequencing.
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Recent biochemical evidence divides all organisms into three domains: Bacteria, Archaea, and Eukarya. Previously, Bacteria and Archaea were viewed as one group. Which statement best describes why Bacteria and Archaea have been placed into separate domains?
options:
Archaea were found to contain organelles, separating them from Bacteria.
Bacteria live in extreme environments and Archaea do not.
They have differences in the biochemical makeup of their cell walls.
Archaea do not resemble Bacteria when viewed under a microscope.
Answers
The statement that best describes why bacteria and archaea have been placed into separate domains it's because they have differences in the biochemical makeup of their cell walls. So the correct option is C.
What is the differens between bacteria and archaea?Archaea have several differences with bacteria such as that archaea have similar metabolic pathways to eukaryotes, also that archaea will contain lipid ethers in cell membranes, and bacteria will not. Archaea will also reproduce asexually and divide by binary fission.
Therefore, we can confirm that the correct option is C. They have differences in the biochemical makeup of their cell walls.
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mutations produce random genetic changes in both cetaceans, such as whales, and viruses, such as influenza. populations of both types of organisms evolve when some mutations produce beneficial traits that are favored by in the current environment or when traits are lost by chance through in addition, viruses sometimes reassort their genes. reassortment happens when two viruses invade a cell and produce offspring from both viruses. evolution takes place more quickly in viruses than in cetaceans because viruses than cetaceans.
Answers
Transformations produce irregular hereditary changes in the two cetaceans, like whales, and infections, like flu.
Populaces of the two kinds of life forms develop when a few changes produce helpful characteristics that are inclined toward by the ongoing climate or whenever qualities are lost by chance through hereditary float.
Moreover, infections once in a while reassort their qualities, which happens when two infections attack a phone and produce posterity from both infections.
Advancement happens more rapidly in infections than in cetaceans because of the short age time and high transformation pace of infections.
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Which of the following organisms cause infectious diseases in the gastrointestinal tract? Select all that apply.
Streptococcus pyogenes
Borrelia burgdorferi
Shigella
Corynebacterium diphtheriae
Salmonella
Answers
The following organisms can cause infectious diseases in the gastrointestinal tract:
Streptococcus pyogenesBorrelia burgdorferiShigellaCorynebacterium diphtheriaeSalmonella.Infectious diseases in the gastrointestinal tract, commonly referred to as gastroenteritis, are caused by a variety of organisms, including viruses, bacteria, and parasites. Streptococcus pyogenes, Borrelia burgdorferi, Shigella, Corynebacterium diphtheriae, and Salmonella are all bacteria that can cause gastroenteritis.
Symptoms of gastroenteritis can include abdominal cramps, vomiting, diarrhea, and fever. Treatment options depend on the underlying cause of the infection, and may include antibiotics, antiviral medications, or antifungal medications.
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unlike eukaryotes, prokaryotes do not undergo mitosis or meiosis. instead, most prokaryotes grow by a process known as binary fission, whereby an individual cell produces two identical daughter cells, each with its own chromosome. watch the following animation on dna replication during bacterial cell division and then answer the questions below. Corkscrew
Unlike eukaryotes, prokaryotes do not undergo mitosis or meiosis. Instead, most prokaryotes grow by a process known as binary fission, whereby an individual cell produces two identical daughter cells, each with its own chromosome.
Order the following events as they occur from beginning to end during DNA replication in a dividing cell.
DNA at origin unzips, and two replication forks form
Replisomes synthesize daughter chromosomes bidirectionally
terminator site is replicated
septum forms
Daughter cells separate
Answers
During the DNA replication of a dividing cell, first the DNA unzips to form replication forks, then DNA is synthesized bidirectionally, then terminator site is replicated which is followed by formation of septum and then the daughter cells separate.
DNA replication is basically the process by which a particular cell replicates the DNA which is present in it. A number of different enzymes play their function in this process. This is necessary for a dividing cell to ensure both the daughter cells are getting equal amount of DNA.
In this process, the DNA first unzips at the origin and two replication forks are formed. The replisomes then happen to synthesize the new DNA strands in a bidirectional manner. This is followed by the replication of the terminator site. The septum is then formed and the cells finally divides to form two daughter cells.
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What is the term that would appropriately….
Answers
The effect that describes an individual that believes in being treated even though they are not is called the Placebo effect, 4th option.
How is the placebo effect used?The placebo effect is the improvement in symptoms experienced by a patient after receiving a treatment that is inactive, such as a sugar pill or saline solution, instead of an active treatment. The placebo effect is used in several ways in medical research and treatment:
Clinical trials: Placebos are often used as a control group in clinical trials to measure the effectiveness of a new treatment compared to an inactive treatment. Pain management: Placebos have been shown to be effective in reducing pain in some patients, and are sometimes used in combination with other treatments, such as pain medications, to provide additional pain relief.Depression and anxiety: Placebos have been found to have a positive effect on symptoms of depression and anxiety in some patients, and are sometimes used in combination with other treatments, such as therapy or medications, to provide additional benefits.Medical procedures: Placebos are sometimes used in medical procedures to help relieve anxiety and improve outcomes.Learn more on placebo effect here: https://brainly.com/question/5069588
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I really need help for homework Biology 102 and it's Due: Feb 1, 2023 at 11:59 PM EST
Question 4 and Question 5
Answers
We can see here that their characteristics are seen below:
Large intestine
Approximately 6m longWall made up of mucosa, submucosa, muscularis, and serosaIncludes the cecum, colon, appendix, and anusFunctions in water, salt, and vitamin absorptionSmall intestine
Functions in nutrient, sugar, amino acid, and fat absorptionIncludes the duodenum, jejunum, and ileumWall has villi and goblet cellsApproximately 1.5m longWhat is small intestine?The small intestine is a part of the digestive system in the human body that is located between the stomach and the large intestine. Its main function is to absorb nutrients from food into the bloodstream. The small intestine is composed of several sections, including the duodenum, jejunum, and ileum.
The inner lining of the small intestine is covered in finger-like projections called villi, which increase the surface area available for nutrient absorption.
Pancreas
Produces juice that contains sodium bicarbonate to neutralize stomach acid.Produces amylase to digest starch, trypsin to digest protein, and lipase to digest fat.Secretes insulin and glucagon to regulate blood sugar levels.Gallbladder
Stores excess bileLiver
Produces bile to be stored in the gall bladderRemoves toxic substances from the bloodManufactures proteins and regulates cholesterol in the bloodRemoves and stores iron and some vitamins from bloodLearn more about small intestine on https://brainly.com/question/392615
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The musket picked up by John Fleet,
following the Boston Massacre in 1770,
is significant today for which of the
following reasons?
A. It is an accurate representation of the weapons used
during the 1770s.
B. It belonged to George Washington.
C. It was advanced technology for its time.
D. It is a representation of the signing of the Declaration
of Independence.
Answers
The fact that the gun that John Fleet found after the Boston Massacre is noteworthy today is due to the fact that D, It is a true portrayal of the muskets and bayonets that were in use in the 1770s.
What did John Fleet accomplish?People hurriedly and chaotically evacuated the region following the horrific Boston Massacre, which claimed the lives of 5 colonists.This uncertainty allowed John Fleet to grab a musket. The old Statehouse is presently where that musket resides, serving as a display for the muskets and bayonets that people in the 1770s employed.The fact that the gun that John Fleet found after the Boston Massacre is noteworthy today is due to the fact that D, It is a true portrayal of the muskets and bayonets that were in use in the 1770s.To learn more about Boston Massacre refer to: brainly.com/question/11809821.
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Overgrazing is a condition of which type of land grazing?
A) one that is conditional to the climatic conditions in the associated region
B
one where the maximum number of species per
unit area is decreased
C)
a type of traditional herding where practices are employed
D) a type where ranchers want to increase the amount of cattle production
E) one that creates a paradigm where diversity is reduced and vegetation growth slows
(All answers online seemed incorrect)
Answers
E) one that creates a paradigm where diversity is reduced and vegetation growth slows is a type of land grazing.
What is the overgrazing of land?Overgrazing of land is when livestock are allowed to graze on the same land for too long, often leading to the degradation of the land. This is especially common in areas where there is not enough land to support the number of animals present.
Overgrazing can lead to the destruction of plant life, soil erosion, and the depletion of essential minerals and nutrients in the soil. When the land is no longer able to produce crops, it is unable to support the local community and its wildlife.
Overgrazing can also lead to an increase in dust and air pollution due to the lack of vegetation. Overgrazing is a serious environmental issue that can have long-term impacts on the health and productivity of the land.
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the photosynthetic euglenids obtained their chloroplasts, which are surrounded by three membranes, through
a. primary endosymbiosis
b. secondary endosymbiosis retaining the chloroplast from a green alga
c. secondary endosymbiosis retaining chloroplasts from a chlorophyte
d. tertiary endosymbiosis
e. none of the above
Answers
The correct answer is option (B). euglenids obtained their chloroplasts from secondary endosymbiosis retaining the chloroplast from a green algae.
All plants and a number of distantly related protist taxa have chloroplasts. There are numerous varieties of chloroplasts, which can contain various kinds of photosynthetic pigments and be encircled by two, three, or four membranes. Despite these variations, the origin of all chloroplasts may be traced to the first endosymbiosis, or the engulfment of an ancestral cyanobacterium by a bigger eukaryotic cell. In an endosymbiotic relationship, one organism lives inside another.
In secondary endosymbiosis, a photosynthetic eukaryote—which later develops into a chloroplast—is ingested by a eukaryotic cell. The nucleus of the enveloped cell has been lost in certain populations throughout time, while it has been preserved in others. Four membranes may surround this new chloroplast in certain species, whereas the plasma membrane of the swallowed cell has been lost in others, such as euglenids.
The same photosynthetic pigments found in terrestrial plants and euglenids are due to their shared evolutionary history. The third membrane of the euglenid chloroplast also fits into this explanation. Chloroplasts were obtained by the euglenids through a secondary endosymbiotic process. A photosynthetic eukaryote was swallowed by an ancestral euglenid during the process of euglenid evolution; the chloroplast was retained, but the remaining components of the old cell were lost. This timeline of events allows the euglenid chloroplast to have 3 membranes and retain from green algae.
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a urine specimen is analyzed by a glucose oxidase reagent and a copper reduction test. if both results are positive, which of the following interpretations is correct? group of answer choices galactose is present glucose is present lactose is not present sucrose is not present
Answers
If a urine specimen is analyzed by a glucose oxidase reagent and a copper reduction test and both results are positive, the correct interpretation is that glucose is present. Here option B is the correct answer.
A positive result from a glucose oxidase reagent test and a copper reduction test for a urine specimen indicates the presence of glucose in the urine sample.
Other sugars such as galactose, lactose, and sucrose may not necessarily be present, and the results of these tests only provide information about glucose.
An early technique for detecting glucose in urine was the traditional Benedict's copper reduction reaction. The test is based on the idea that chemicals that convert glucose into cuprous oxide by reducing copper sulfate in the presence of alkali and heat would cause a color change.
Complete question:
A urine specimen is analyzed by a glucose oxidase reagent and a copper reduction test. if both results are positive, which of the following interpretations is correct? group of answer choices
A - galactose is present
B - glucose is present
C - lactose is not present
D - sucrose is not present
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Which is a homopolysaccharides? Explain your answer.
a. Hyaluronic acid
b. Amylopectin
c. Peptidoglycan
Answers
Answer: the answer is b)amylopectin
Explanation:
amylopectin is made up of glucose monomers .
homopolysaccharides are the made up of all the same monommers.
