Answer:
A. heating a fish tank
Explanation:
It's the only example where heat is truly moving around
a researcher stains various types of cells from the same organism, using a dye that stains in direct proportion to the amount of dna in the cell. you would expect the researcher to find that somatic cells have dna in their nuclei as the organism's sperm do.
The researcher would be expected to find DNA in the nuclei of both somatic cells and sperm cells of the same organism.
The researcher who is staining cells from the same organism with a dye that stains in direct proportion to the amount of DNA in the cell would expect to find DNA in the nuclei of both somatic cells and sperm cells. This is because all cells of an organism, regardless of their type or function, contain DNA in their nuclei. DNA is the genetic material that carries the information necessary for the growth, development, and functioning of cells. In somatic cells, DNA is organized into chromosomes that occupy the nucleus of the cell, while in sperm cells, DNA is packaged into a highly compact structure called the sperm head.
The researcher's staining method should reveal the presence of DNA in both types of cells, as the dye used stains in direct proportion to the amount of DNA present.
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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.
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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on your own: continue to practice identifying minerals g through p below. sample mineral name (first try) mineral name (actual) correct on first try? g h i j k l m n o p
The correct minerals are:
Gypsum - Gypsum - Yes, correct on first try. Hematite - Hematite - Yes, correct on first try. Ilmenite - Ilmenite - Yes, correct on first try. Kyanite - Kyanite - Yes, correct on first try. Limonite - Limonite - Yes, correct on first try. Magnetite - Magnetite - Yes, correct on first try. Nepheline - Nepheline - Yes, correct on first try. Olivine - Olivine - Yes, correct on first try. Pyrite - Pyrite - Yes, correct on first try.The minerals you listed above are all examples of what are known as “mineral resources”. Mineral resources are minerals and rocks that are mined from the Earth in order to obtain valuable products and materials. These minerals have a wide range of uses, from being used in construction to being used in industrial processes. Each mineral has its own unique properties, which makes them ideal for different uses.
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according to the hypothesis of trophic cascades in food chains, heavy predation in a system with four trophic levels (e.g., tarsobaenus beetles in costa rica discussed in slides) should lead to: group of answer choices
a. increased primary b. production decreased c. primary production d. decreased rates of herbivory both
According to the hypothesis of trophic cascades in food chains, heavy predation in a system with four trophic levels (e.g., Tarsobaenus beetles in Costa Rica) should lead to decreased rates of herbivory, which can result in increased primary production. Correct answer: letter C.
This is because the predation reduces the amount of herbivores in the system, allowing more of the plant material to be processed into usable energy, which can then be used by other organisms in the ecosystem.
This is beneficial to other organisms in the food chain, as they can now access more of the energy that was previously held back by the large number of herbivores. This increased energy can then be used to fuel the growth and development of other organisms, allowing for increased primary production and biodiversity in the ecosystem.
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you buy 100 shares of xyz, which has a bid price of $50.1 and an ask price of $50.45. you sell all shares after 6 months later when the bid price is $50.2 and ask price is $50.6. there is a 0.3% brokerage commission, and the borrowing and lending interest rates are 6%, compounded 4 times a year. xyz pays a single dividend of 1 at the end of 3 months.
The 3-month profit for this investment scenario is a loss of $21.32.
The 3-month profit for this scenario can be calculated as follows:
First, we need to calculate the purchase price, which is the average between the bid price and the ask price. This is $50.27 per share.
Next, we multiply the purchase price by the number of shares to find the total cost of the investment, which is $5027.
Then, we need to subtract the brokerage commission of 0.3%, which is $8.32.
The total cost of the investment after the commission is $5018.68.
After 3 months, we need to add the interest earned on the investment and subtract the dividend of 1 per share.
Finally, we calculate the sale price of the shares, which is the average between the bid price and the ask price, which is $50.4 per share.
The total sales price is $5040.
The 3-month profit is the difference between the sale price and the total cost of the investment, which is $-21.32.
In conclusion, the 3-month profit for this investment scenario is a loss of $21.32.
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why do species aseed their carrying cascade
Answer:A trophic cascade is what happens when predators keep their prey in check. This can mean that they make sure they don’t overpopulate or they keep them moving around so they don’t overeat and destroy the vegetation around them. This allows for the prey species below their prey to survive better.
Explanation:
number these 1-14 in the right order for blood flow through the heart starting with the right atrium:
Left atrium :
Vena Cava :
Tricuspid valve :
Right Atrium :
Left Ventricle :
Pulmonary Trunk :
Biscuspid Valve :
Pulmonary semilunar valve :
lungs :
Right ventricle :
pulmonary veins :
Aorta :
Aortic semilunar valve :
Answer:
1. body
2. vena cava
3.right atrium
4. tricuspid valve
5. right ventricle
6. pulmonary arteries
7. lungs
8. pulmonary veins
9. left atrium
10. biscupid valve
11. left ventricle
12.aortic seminular valve
13.pulmonary seminular valve
14. aorta
although justin spent his first 18 months in an orphanage, his adoptive mother believes sensitive caregiving will help justin overcome his early experiences. justin's mother emphasizes the role of in development. group of answer choices nurture nature stages stability
Despite spending his first 18 months in an orphanage, Justin's adoptive mother was of the opinion that providing compassionate care will help Justin move over his traumatic experiences.
The idea of plasticity emphasises that there are numerous developmental outcomes that could occur and that human development is much more open and pluralistic than what traditional views initially suggested. There is no one path that must be followed throughout an individual's development over the course of their lifetime. An illustration of plasticity is plastic wrap. It remains stretched after being stretched. Most materials can flex elastically under a certain amount of strain or pressure. If further pressure or force is applied, they will deform plastically.
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louis pasteur hypothesized that microbes were in the air and dust. through experiments using swan-necked flasks, he disproved the concept of
Pasteur next placed the particles within the flask's body and watched as the microbes proliferated and spoiled the infusion after emerging from the particles.
With his well-known swan-neck flask experiment, Louis Pasteur is credited with successfully refuting the hypothesis of spontaneous generation. After it, he said that "life only derives from life. The theory of spontaneous generation was disproved when the test flask remained sterile. Pasteur was able to determine that cells were actually entering the broth from the surrounding air by altering just one variable—the form of the flask neck. He warmed an infusion that was sealed in a "Swan neck"-shaped or S-shaped vessel, allowed it to cool, and then severed the tip of the vessel.
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you compare the genomes of two species and determine some very large differences. this would suggest that the two species ____ .
If the genomes of two species determine some very large differences. this would suggest that the two species are not closely related.
If two species have large differences in their genomes, it suggests that they have been evolving independently for a significant amount of time and have therefore diverged from a common ancestor. The instructions in our genome are made up of DNA. Within DNA is a unique chemical code that represents our growth, development, and health. This means that they are not closely related, and are likely to belong to different genera, families, or even higher taxonomic groups. The greater the differences in the genomes, the greater the evolutionary distance between the two species.
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what is the mouth of a flower
petal
stem
root
leaf
Answer:
it will be the root as the root suck up the nutrient in the soil as well as the water in the soil
Explanation:
which of the following affect dna (shown in picture)
The factor that can be able to affect the DNA is;
Genes that are passed down from parents.
What is the DNA?DNA stands for Deoxyribonucleic Acid, it is a molecule that encodes the genetic information in cells of living organisms. It forms the genetic blueprint that determines an organism's physical traits and characteristics.
We know that the DNA of the organism can only be affect by the process of inheritance as the other physical factors can not be able to affect the DNA so as to change it.
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Individuals who have had portions of the ______ removed in order to stop their seizures sometimes have difficulty learning and remembering new information.
Individuals who have had portions of the limbic system removed in order to stop their seizures sometimes have difficulty learning and remembering new information.
The limbic system is the pаrt of the brаin involved in our behаviourаl аnd emotionаl responses, especiаlly when it comes to behаviours we need for survivаl: feeding, reproduction аnd cаring for our young, аnd fight or flight responses.
The structures of the limbic system buried deep within the brаin, underneаth the cerebrаl cortex аnd аbove the brаinstem. The thаlаmus, hypothаlаmus (production of importаnt hormones аnd regulаtion of thirst, hunger, mood etc.) аnd bаsаl gаngliа (rewаrd processing, hаbit formаtion, movement аnd leаrning) аre аlso involved in the аctions of the limbic system, but two of the mаjor structures аre the hippocаmpus аnd the аmygdаlа.
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a) Considering that purple is dominant to white, and using P for purple and p
for white, draw a Punnett square crossing a heterozygous purple-flowered
plant and a white-flowered plant.
b) What are the genotypes produced by this mating?
c) What are the phenotypes produced by this mating?
d) What percentage (or fraction) of the offspring is homozygous?
The genotypes of a specific cross or breeding experiment are predicted using the Punnett square, a square diagram.
What is Punnett square?It bears Reginald C. Punnett's name, who developed the method in 1905. Biologists use the figure to calculate the likelihood that a child will have a specific genotype. The Punnett square is a table that lists potential pairings of paternal and maternal alleles.
These tables can be used to look at the genotypic odds of a single trait (allele) or of crossing numerous traits from the parents. Mendelian inheritance can be seen using the Punnett square.
When using the phrases "heterozygous," "homozygous," "double heterozygote" (or homozygote), "dominant allele," and "recessive allele," it's crucial to grasp what they mean.
Therefore, The genotypes of a specific cross or breeding experiment are predicted using the Punnett square, a square diagram.
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How are birds different from mammals ?
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
Identify and describe structural modifications of the wall of the small intestine that enhance the digestive process. Small Intestine: The small intestine is the longest digestive organ located between the stomach and the large intestine. This organ is divided into three distinct regions called the duodenum, jejunum, and ileum.
C: The wall of the small intestine is structurally modified in order to enhance digestion with the following structures:
The structural modifications of the wall of the small intestine that enhance the digestion is described below:.
Villi: small finger-like projections on the intestinal wall that increase the surface area for absorption.Microvilli: tiny projections on the villi that further increase the surface area.Intestinal glands (crypts of Lieberkühn): produce digestive enzymes and mucus to break down food.Circular and longitudinal muscle layers: mix and move the food bolus along the small intestine to increase contact with digestive enzymes."
Complete questin:
Identify and describe structural modifications of the wall of the small intestine that enhance the digestive process.
A: The small intestine is the longest digestive organ located between the stomach and the large intestine.
B: This organ is divided into three distinct regions called the duodenum, jejunum, and ileum.
C: The wall of the small intestine is structurally modified to enhance digestion
"
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cells alive animal cell worksheet
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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What types of energy have you heard of?
Answer:
See below
Explanation:
This is so vague...
- Thermal energy
- Solar energy
- Light energy
- Nuclear energy
- Chemical energy
- Kinetic/gravitational energy
- Electrical energy
Answer:
please make me brainalist and keep smiling dude
Explanation:
The five forms of energy are as follows:Electrical Energy.
Electrical Energy.Chemical Energy.
Electrical Energy.Chemical Energy.Mechanical Energy.
Electrical Energy.Chemical Energy.Mechanical Energy.Thermal Energy.
Electrical Energy.Chemical Energy.Mechanical Energy.Thermal Energy.Nuclear Energy.
You sampled sea water in an area for microorganisms. In one milliliter of water, you grew 1,000,000 organisms. Among those were 20,000 species. What is the biodiversity index?
The biodiversity index is 0.02.
How to calculate biodiversity index?Biodiversity index is a mathematical measure of species diversity in a community.
One way to calculate a simple biodiversity index is by dividing the species richness by the species evenness as follows:
Biodiversity index = number of species in the area ÷ total number of individuals in the area
According to this question, in a sampled sea water in an area for microorganisms, 1,000,000 organisms were grown. Among those were 20,000 species.
Biodiversity index = 20,000 species ÷ 1,000,000 organisms
Biodiversity index = 0.02
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URGENT! HELP!
In the United States, what percentage of people who caught Covid-19 have died from it?
(in other words, what is the mortality rate or case-fatality rate?)
Nearly 669 million COVID-19 cases were reported globally as of January 9, 2023. In the United States, COVID-19 caused 6.7 million deaths.
Describe Covid-19.a coronavirus-based acute human infection that is primarily distinguished by fever and cough but that has the potential to proceed to obvious illnesses and, in some cases, death, particularly amongst elderly persons and individuals who have previous health complications.
What are the signs of Covid 19?Coronavirus symptoms and manifestations might occur somewhere around two and fourteen days after the initial exposure. The onset of symptoms is the interval between absorption and the appearance of symptoms. Even if you don't yet have symptoms, COVID-19 could still be disseminated.
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researchers studying pea plants crossed homorygous dominant pea plants with homozygous recessive pea plants. the f, plants were then crossed, and the number of ...
If researchers studying pea plants crossed homozygous dominant pea plants with homozygous recessive pea plants the F1 plants had all the dominant phenotypes and then crossed, and the number of dominant to recessive characters was 3:1.
What is the expected ratio of 3 to 1 in a heterozygous genetic cross?The expected ratio of 3 to 1 in a heterozygous genetic cross indicates that the trait is dominant.
Therefore, with this data, we can see that the expected ratio of 3 to 1 in a heterozygous genetic cross evidence the presence of complete dominance for a given character.
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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.
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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A person has 5.1 x 10⁹ red blood cells per cm³ of blood. The person has 4.25 dm³ of blood in their body. A total of 2.0 x 10¹¹ of the red blood cells are replaced each day. Calculate the percentage of red blood cells that are replaced each day. 1 dm³ = 1000 cm³
The red blood cell count is typically between 4.2 and 5.9 million cells/cm3, which translates to 4.2 to 5.9x1012 cells/l in international units.
How much blood is in a male and female?Each adult male has about 5.5 litres of blood, while females have about 4.5 litres.About 2 1013 red blood cells in a healthy adult transfer O2 and CO2 from the lungs to tissues. Of these, about 1.7 1011 are regenerated daily as a result of the circulatory system's typical lifespan of about 120 days.One percent of all of our cells, or around 330 billion, are replaced every day. 30 trillion will have replenished, which is the same as a new you, after 80 to 100 days.The number of red blood cells in your body can be determined by a blood test called an RBC count. Men range from 4 to 5 x 10*12/L, while women range from 3 to 5 x 10*12/L.To learn more about blood cell refer to:
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Which statement best describes an example of how human activities lead to decreased biodiversity ?
C. Construction requires the removal of organisms to allow space for urban growth, decreasing an ecosystem's resiliency.
Which statement best describes an example of how human activities lead to decreased biodiversity ?Human activities can have a negative impact on biodiversity by reducing species diversity and population sizes.For example, when constructing buildings, roads, and other infrastructure, land must be cleared and habitats disturbed, resulting in the displacement and death of many organisms.This can decrease biodiversity in an area as certain species are no longer able to survive in the modified environment, reducing the number of species in the ecosystem.Additionally, habitat fragmentation caused by construction can lead to the isolation of species and reduce their ability to reproduce and survive in their new environment.This can lead to a decrease in species diversity, as well as a decrease in population sizes of the species that remain.The decrease in biodiversity can have a ripple effect on the ecosystem, making it less resilient and vulnerable to further threats.
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tetracycline is an antibiotic that works by binding to the 30s subunit of bacterial ribosomes, thus inhibiting protein synthesis. this drug is able to cross the cell membrane because? A. it acts as a mild detergent to weaken and partially dissolve the lipid bilayer.
B. it also binds to sugars, thereby "hitching a ride" on normal nutrients into the cell.
C. as a weak base, it can cross the membrane in its uncharged form.
D. as a weak acid, it forms small holes in the membrane through which it passes.
E. it closely resembles aromatic amino acids and enters using their transport proteins.
Option A is Correct. Tetracycline is an antibiotic that prevents the synthesis of proteins by attaching to the 30s subunit of bacterial ribosomes.
This medicine acts as a mild detergent to weaken and partially dissolve the lipid bilayer, which allows it to pass through the cell membrane. Tetracyclines are antibiotics, substances in nature that have the ability to stop the development of bacterial cells. The 30s subunits of bacterial ribosomes are bound by streptomycin, altering their structure and leading them to misread mRNA code.
Large, polar molecules and ions require the assistance of transport proteins, whereas nonpolar molecules and extremely small polar molecules can simply flow across the lipid bilayer. Both the charged ions sodium and potassium are unable to pass through the membrane.
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Which of the following is NOT a characteristic of organisms found in the animal kingdom?
Question 3 options:
Eukaryotic cells
Cell walls contain cellulose
Multicellular
Heterotrophic
Euchromatin refers to regions of DNA that are loosely packed to increase the efficiency of transcription. Which of the following would you expect to find in a region of euchromatin? A. more thymines B. fewer thymines C. more histones D. fewer histones
D: Fewer histones is expected to find in a region of euchromatin.
Euchromatin refers to regions of DNA that are loosely packed and more accessible to the transcriptional machinery. This is achieved by having fewer histones associated with the DNA, making it easier for the machinery to access and transcribe the genes in that region. Therefore, in a region of euchromatin, you would expect to find fewer histones, but the number of thymines (or any other specific nucleotide) would not necessarily be different from other regions.
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name the reactions that have produced o2 on earth. describe the accumulation of atmospheric o2 over time and the effects of this accumulation on living things.
Answer:
the reaction which produce oxygen gas on earth is the photosynthesis
Explanation:
reaction; 6co2+6h2o, in the presence of sunlight and chrolophyl it produces= c6h12o6 + 6o2
effect of overtime accumulation of o2: severe cases of oxy toxity can lead to cell damage and death in living things and also cause changes in lungs, which r potentially hrmful
Which of the following best describes an example of negative feedback regulation in the endocrine system? The release of testosterone causes the of the prostate gland to increase in size. The release of CRH causes an increase in the release of ACTH. The release of thyroid hormones causes a decrease in the release of TRH. The release of ACTH causes an increase in the release of cortisol.
Answer:
The release of thyroid hormones causing a decrease in the release of TRH best describes an example of negative feedback regulation in the endocrine system.
In negative feedback regulation, an increase in a certain hormone or chemical triggers a response that leads to a decrease in the production or release of that hormone or chemical. In this example, the release of thyroid hormones triggers a response that leads to a decrease in the release of TRH. This helps to maintain homeostasis and prevent overproduction of hormones.
Negative feedback regulation is a common mechanism in the endocrine system, which helps to maintain the balance of hormones in the body and prevent excessive or prolonged hormone release.
In contrast, in positive feedback, an increase in a certain hormone or chemical triggers a response that leads to an increase in the production or release of that hormone or chemical.
an introduction of a new food resource into the environment may cause a new species to appear. an introduction of a new species of predator may cause the evolution of new defenses in some prey species. a predator not eating a bright colored prey again because the previous time the taste was unpleasant. an increase in temperature may select against cold-adapted genotypes. an increase in a population of one species may case the extension of another species with the same food ration.
Examples that support my reasoning are:
An increase in temperature may select against cold-adapted genotypes.A predator not eating a bright colored prey again because the previous time the taste was unpleasant.An introduction of a new food resource into the environment may cause a new species to appear.An introduction of a new species of predator may cause the evolution of new defenses in some prey species.The answer is A, B, D and E.
Evolution is the process by which species adapt to their environment in order to survive and reproduce. Changes in an organism’s environment can select for or against certain traits, which can lead to changes in the organism’s phenotype (visible characteristics) over time. These changes help the organism to survive and reproduce in its new environment.
Choose examples to support your reasoning. Select all that apply:
A) An increase in temperature may select against cold-adapted genotypes.
B) A predator not eating a bright colored prey again because the previous time the taste was unpleasant.
C) An increase in a population of one species may case the extension of another species with the same food ration.
D) An introduction of a new food resource into the environment may cause a new species to appear.
E) An introduction of a new species of predator may cause the evolution of new defenses in some prey species.
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