Comparative embryology is the process of comparing and contrasting embryo development to determine common ancestry.
Comparative embryology is the study of comparing the development of embryos from different species. Before they specialize in the various organs and systems of the body, all embryos must first develop from a single cell into a multi-celled zygote, then into a clump of cells known as a morula, and finally into a hollow ball of cells known as a blastula.
The study of the similarities and differences that can be found in the embryos of several animals is referred to as comparative embryology. It is likely that shared ancestry is the explanation for similarities found in embryos.
You can also learn about Comparative embryology from the following question:
https://brainly.com/question/981402
#SPJ4
What problem did the distilled water in the patient's bloodstream create?
The patients blood was hypertonic
The patients blood was hypotonic
The patients blood was isotonic
Which one is correct^ please help!!
Answer:
The patients blood was hypotonic
Explanation:
Hypertonic means that there is water coming into the blood cells.
Hypotonic refers to water leaving the blood cell.
Isotonic is that balance, there is water coming in and out .
Since there is distilled water in the patient's bloodstream, the water is coming into the cell and swelling/bursting the cell, which is called a hypertonic solution of a red blood cell.
Edit: It can't be Isotonic because Isotonic solution is considered normal and would not cause any problems.
What type of reflex is the crossed extensor reflex?
A contralateral response called the crossed extensor reflex enables the body to make up for a stimulation on one side by making changes to the other.
What transpires in an extensor reflex crossed?A contralateral response called the crossover extensor reflex enables the body to make up for a stimulation on one side by making changes to the other. For instance, the lateral extensor reflex causes the body to transfer its weight to the other foot when one foot boots on a nail, protecting and withholding the foot from the nail.
This quizlet will explain crossed extensor reflexes.Extensor reflex crossed. contracts the extensor muscle on the side (contralateral side) that is opposite from the unpleasant stimulation. When one foot is removed off a ground, this forces the opposing leg to bend to support shifting weight.
To know more about crossed extensor reflex visit:
https://brainly.com/question/23243906
#SPJ4
Funicular myelosis and hyperchromic anemia developed in a man 7 years later after the stomach resection due to ulcer. What pathogenic mechanism of changes in spinal cord is the most possible one?
A. Hypoxia impairment in anemia
B. Accumulation of methylmalonic acid in cyanocobalamin deficiency
C. Impairment of DNA in cyanocobalamin deficiency
D. Deficiency of folic acid
E. Deficiency of iron containing enzyme
The most likely pathogenic mechanism of changes in the spinal cord is B, accumulation of methylmalonic acid in cyanocobalamin deficiency.
Vitamin B12, also known as cyanocobalamin, is essential for proper function of the nervous system and for the production of red blood cells. A deficiency in vitamin B12 can lead to a buildup of methylmalonic acid, which can cause damage to the nervous system and lead to conditions such as hyperchromic anemia and spinal cord disease, including subacute combined degeneration of the spinal cord. The patient's history of a stomach resection and development of symptoms 7 years later suggests that the patient may have developed a B12 deficiency due to a lack of intrinsic factor, which is necessary for the proper absorption of B12 from the diet. The presence of both hyperchromic anemia and spinal cord disease further supports a diagnosis of B12 deficiency.
To learn more about hyperchromic anemia visit:
https://brainly.com/question/14776700#
#SPJ11
suppose you are an exterminator of organisms that undergo chemosynthesis. which technique will prove most effective to eliminate the greatest number of organisms
Removing methane and hydrogen sulphide will be the most effective method for eliminating the maximum number of organisms.
Chemosynthesis is the biological processing of one or even more carbon-containing substances and resources into plant substances through the oxidation of inorganic chemicals or ferrous ions rather than sunlight, as in photosynthesis.
Chemosynthesis is the use of energy supplied by inorganic biochemical processes to make food in bacteria and other living organisms.
To create sugar, all chemosynthetic organisms employ the energy released by chemical reactions, although various species use different methods.
Vent bacteria, for example, oxidise hydride sulphide, add oxygen and carbon dioxide and generate sugar, sulphur, and liquid: CO2 + 4H2S + O2 -> CH20 + 4S + 3H2O.
Organic matter is produced by other bacteria by reducing sulphide or oxidising methane.
Chemosynthetic bacterial colonies have been discovered in hot springs both on land and at sea, near hydrothermal vents, cold seeps, whale corpses, and even sunken pirates.
To know more about Chemosynthesis visit:
https://brainly.com/question/4821668
#SPJ4
a liquid has a ____________ shape that ____________ conform to the container shape, but only to the extent of the liquid's volume; that is, a liquid ____________ form an upper surface.
A liquid has a free-flowing shape that can conform to the container shape, but only to the extent of the liquid's volume; that is, a liquid can form an upper surface.
A liquid has an adaptable, fluid shape that adjusts to the contours of its container.
The shape of a liquid is determined by its volume, and it will assume the form of its container to the fullest extent possible without spilling over. Liquids are unique in their ability to fill containers and assume their shape, yet maintain a distinct and constant volume.
The surface of a liquid always forms a flat and level plane, which is known as the upper surface.
This is due to the cohesive forces between the molecules that make up the liquid, which prevent the liquid from flowing uncontrollably and maintain a stable form.
Learn more about liquid here :
https://brainly.com/question/20922015#
#SPJ11
Compare and contrast the prokaryotic kingdoms
Answer:
Bacteria: cells do not contain a nucleus. Archaea: cells do not contain a nucleus; they have a different cell wall from bacteria.
Bacteria have a unique compound called peptidoglycan in cell walls. Archaea have unique phospholipids in their plasma membrane and hydrocarbon tails that contain isoprene.
Explanation:
describe how the new x chromosome data supports your hypothesis. change your hypothesis to a new mutation if needed.
New information can either confirm or disprove an existing idea regarding a particular X chromosomal mutation. If the findings are consistent with the hypothesis.
They can offer proof that a mutation is to blame for a certain characteristic or phenotype. On the other hand, if the evidence refutes the hypothesis, it may be essential to amend or modify the hypothesis or to investigate additional possibilities, such as the existence of a different mutation.
More details on the theory, the new X chromosome data, and the connection between the two would be useful in this situation.
A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. The very long, thin DNA strands in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins.
For such more question on chromosomal
https://brainly.com/question/11912112
#SPJ4
true or false? natural selection is defined as the differential survival and reproduction of a population’s individuals that are genetically identical.
False. Natural selection is not defined as the differential survival and reproduction of a population’s individuals that are genetically identical.
Natural selection is the process by which populations of organisms evolve over time due to differential survival and reproduction of individuals with certain traits. These traits are often determined by the organism's genes, and individuals with traits that are better suited to their environment are more likely to survive and reproduce than those with less advantageous traits.
However, natural selection does not require that individuals within a population are genetically identical. In fact, genetic variation is a key component of natural selection, as it provides the raw material for evolution to occur. Different individuals within a population may have slightly different genetic variations, and the traits associated with these variations can lead to differences in survival and reproductive success.
Learn more about reproduction visit here:
https://brainly.com/question/14329745
#SPJ11
A scientist breeds a family of white mice The Father mouse was white, the mother mouse was white, and all of the baby mice were white. Both parents had parents who were white Label the family below8. Phenotype 9 Genotype 10 Phenotype 11 Genotype 12 Phenotype 13. GenotypeLook Figure
One family of white mice is bred by a scientist. White mice made up the mother mouse, the father mouse, and all of the young mice. It was a white Label family that both parents came from. They have the genotype bb.
Phenotype
Their genotype is bb, and both the father's and mother's mice have the white phenotypic.
When both parents are crossed at once, we obtain bb x bb F1 bb.
Since their genotype is bb, all of their offspring are white.
A true-breeding family, they all exhibit the parental trait and no additional traits arise in subsequent generations.
Learn more about phenotype from here:
https://brainly.com/question/20730322
#SPJ4
The data show that both paper grocery bags and plastic grocery bags cause
harm to the environment. As a result, the scientists who study this issue are
most likely to:
Most of the time, the researchers in this field carry their groceries on their heads.
What transpired when you used a plastic bag ?The majority of plastic bags are disposed of in landfills, where they take 300 years to photodegrade and are difficult and expensive to recycle. They decompose into minute poisonous particles that contaminate the soil and streams and make their way into the food chain when animals eat them by accident.
Plastic bags' protracted decomposition time has a significant negative influence on the environment. Additionally, burning plastic bags releases a poisonous chemical into the air, which contributes to ambient air pollution, and as plastic bags decompose in the sun, toxic substances are released into the soil.
Learn more about Plastic bag here:
https://brainly.com/question/29419188
#SPJ1
the a t: g c ratios in dna of cattle and rat are very similar. would you expect the trna, trnas, and mrnas of the two species to be similar?
Answer:
Yes I would based on the fact they are both mammals
Explanation:
common sense
The A:T:G:C ratios in DNA of cattle and rat being similar does not necessarily mean that their tRNA, tRNAs, and mRNAs will also be similar.
While the DNA sequence provides the blueprint for the production of RNA and proteins, it is the specific sequences of the RNA and proteins that determine their function and structure. The genetic information encoded in the DNA is transcribed into RNA, and the RNA is then translated into proteins. This process is subject to various levels of regulation and modification, including alternative splicing and post-translational modifications, which can result in different functional outcomes even when the DNA sequences are similar. Therefore, similarities or differences in the tRNA, tRNAs, and mRNAs of cattle and rat will depend on the specific sequences of these RNA molecules, rather than the A:T:G:C ratios in their DNA.
Learn more about DNA here:
https://brainly.com/question/264225
#SPJ4
What is the formula for photosynthesis and cellular respiration?
Answer:
The overall formula for photosynthesis is:
6CO2 + 6H2O + light energy → C6H12O6 + 6O2
This equation shows that during photosynthesis, carbon dioxide and water are converted into glucose (C6H12O6) and oxygen, with the help of light energy.
The overall formula for cellular respiration is:
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy (ATP)
This equation shows that during cellular respiration, glucose and oxygen are converted into carbon dioxide, water, and energy in the form of ATP.
It's important to note that the process of photosynthesis and cellular respiration occur in different organelles of a cell, in photosynthesis it occurs in chloroplast in plants and in cellular respiration it occurs in mitochondria. Also, Photosynthesis is an endothermic process while cellular respiration is an exothermic process.
2.
Frequencies :
AA:___
Aa:___
aa:____
Genotypes:
P1:____
F1:_____
A gene encoding mouse coat color has two different alleles that either encode gray
Genotype= Bb
Phenotype= Black coat
What is allele?An allele is a contrasting or variant form of a gene. Most genes possess two alleles. According to Mendel's findings in his law of dominance, an allele is capable of masking the expression of another gene.
The allele has been masking or being expressed is called a dominant allele while the allele being masked is called a recessive allele.The alleles of the particular gene can either be in a homozygous or heterozygous state.
Therefore, A gene encoding mouse coat color has two different alleles that either encode gray
Genotype= Bb
Phenotype= Black coat
Learn more about gene on:
https://brainly.com/question/8832859
#SPJ1
You come in contact with germs/ bacteria internal or external?
Answer: Inside
Explanation:Some bacteria live in and on our bodies and don’t cause problems. Other kinds of bacteria (as well as parasites and viruses) can make us very sick if they get inside our bodies. Bacteria and viruses can live outside of the human body (such as on a countertop) sometimes for many hours or days.To cause disease the germs has to enter our body
Explained simply how our use of science in transport and generating electricity is having a global effects on the environment?
Despite being a generally safe and clean kind of energy when it is used, electricity generation and transmission have an impact on the environment.
The environment is impacted by almost all types of electric power plants, but some have more of an impact than others.
A major component of each person's environmental footprint is the consumption of electricity, which accounts for around 40% of the total energy utilized in the United States.
The amount of fuel required to produce and use power more efficiently decreases, as does the amount of greenhouse gases and other air pollution that is released as a result.
Since no fuels are burned while producing electricity from renewable sources like solar, geothermal, and wind, it generally has no impact on global warming or local air pollution.
In the US, laws are in place to control how producing and transmitting power affects the environment. Most power stations are required to comply with the Clean Air Act's air pollution regulations.
The Clean Air Act is administered by the U.S. Environmental Protection Agency (EPA), which also establishes emission restrictions for power plants through a number of initiatives like the Acid Rain Program.
In the United States, emissions of some main air pollutants have been significantly reduced thanks to the Clean Air Act.
Learn more about the greenhouse effect at
https://brainly.com/question/19521661
which of the endocrine glands has a major function in a different organ system
The pancreas is one of the major endocrine glands that has a major function in a different organ system.
The pancreas produces several hormones, including insulin, glucagon, and somatostatin, which regulate the body's metabolism. These hormones are buried into the bloodstream and trip to different organs to regulate the body's carbohydrate, fat, and protein metabolism.
Insulin is essential for controlling the position of glucose in the blood, and glucagon is necessary for adding the position of glucose in the blood. Somatostatin helps to control the release of hormones from other endocrine glands,
To know more about pancreas visit:
https://brainly.com/question/20693465
#SPJ4
Hurricane Katrina hit New Orleans and seriously depleted the population of organism there. The remaining population had to repopulate. This an example of _________? explain why
When Hurricane Katrina hit New Orleans and seriously depleted the population of organisms there, the remaining population had to repopulate and this is an example of secondary succession.
This is an example of secondary succession because the change that occurred happened to an already existing population of organisms.
What is secondary succession?When a place is disturbed but not severely enough to completely clear it of all vegetation and soil, secondary succession happens.
Secondary succession can be started by a variety of disturbances, including fire, flooding, windstorms, and human activity.
The hurricane Katrina effect on the population of organisms in New Orleans is an example of secondary succession.
Learn more about secondary succession at: https://brainly.com/question/520254
#SPJ1
Which of these actions is necessary for blood vessels to dilate?
a.) Inhibition of antibody production
b.) Inhibition of the complement system
c.) Secretion of histamines
d.) Concentration of macrophages
The action necessary for dilation of blood vessels is: (c) Secretion of histamines.
Blood vessels are the hollow tube-like structures present all over the body for the transportations of blood and various substances throughout the body. There are three categories of blood vessels in the body: arteries, veins and capillaries. The arteries are the main blood vessels that supply blood to the whole body.
Histamine is a chemical substances released in the body when the immune system is triggered due to an allergic reaction. Histamine triggers the local immune responses. It also acts as a neurotransmitter in the brain for the transmission of signals.
To know more about blood vessels, here
brainly.com/question/2701960
#SPJ4
in the allopatric speciation of ensatina salamanders the geographic barrier separating the diverging populations was the .
The central valley of California is the geographic barrier that separates the diverging population of ensatina salamanders.
The Central Valley can be roughly divided into two parts that are the northern third is known as the Sacramento Valley and the southern two-thirds is the San Joaquin Valley. The San Joaquin Valley can be further divided into the San Joaquin Basin and the Tureale Basin. Major cities in this part of the state include Fresno, Modesto, Stockton, and the state capital, Sacramento. The Central Valley of California's fertile soils and long growing season make it one of the most important agricultural regions in the United States. The Central Valley is a region known for its agricultural productivity.
Learn more about the allopatric specification in
https://brainly.com/question/12387377
#SPJ4
what does the left y-axis of the graph represent? what does the left y-axis of the graph represent? stage of ecological succession ecological age number of bird species number of breeding pairs per 100 acres
In the given graph the left y-axis represents the number of breeders per 100 acres. The coordinate plane has two important lines: the x-axis and the y-axis.
All of the trees, plants, birds, deer, squirrels, foxes, fungi, insects, fish in forest rivers, and other local or seasonal species make up a forest community. A coral reef community, on the other hand, is home to a wide variety of fish, coral, and algae species. A number line runs horizontally along the x-axis and vertically along the y-axis. The coordinate plane is created by the perpendicular intersection of these two axes. The abscissa is another name for the x-axis, and the ordinate is the name of the y-axis.
Know more about species here: https://brainly.com/question/13259455
#SPJ4
(Complete question)
what does the left y-axis of the graph represent? stage of ecological succession ecological age number of bird species number of breeding pairs per 100 acres
Write It!
Plant cells have organelles that animal cells do not or that are used differently. Specifically a cell wall, vacuoles,
and chloroplasts. Explain the function of these organelles and why animals cells do not have these organelles.
Your answer
T
I
Answer:
Because animals get sugar from the food they eat, they do not need chloroplasts: just mitochondria. Both plant and animal cells have vacuoles. A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles.CELL WALL :-- The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.
CHLOROPLAST :-- Chloroplasts produce energy through photosynthesis and oxygen-release processes, which sustain plant growth and crop yield. As such, chloroplasts are responsible for the biosynthesis of active compounds such as amino acids, phytohormones, nucleotides, vitamins, lipids, and secondary metabolites .
Explanation:
hope it helps<3Please watch the video that I am sending "Punnett Squares and Sex-Linked Traits" from Amoeba Sisters to answer these questions
Questions:
1. What is hemophilia?
2. Is hemophilia dominant or recessive?
3. What are the chromosomes for a female?
4. What are the chromosomes for a male?
5. Which chromosome is hemophilia attached/carried on?
6. Are males or females more likely to have hemophilia?
7. What is a carrier?
8. Who can be a carrier of hemophilia?
9. Does a carrier have hemophilia?
10. What are the alleles for a carrier of hemophilia?
11. What are the alleles for a male with hemophilia?
12. What are the alleles for a male with normal blood clotting?
13. What are the alleles for a female with normal blood clotting?
14. what are the alleles for a female with hemophilia?
15. What treatments are there for hemophilia? (may need to look this one up)
Note that:
Hemophilia is a genetic bleeding disorder where blood doesn't clot properly.Hemophilia is a recessive trait.The chromosomes for a female is XX; whileThe chromosomes for a male is XYHemophilia is carried on the X chromosome.Males are more likely to have hemophilia than females.A carrier is a person with a single copy of a disease-causing gene.Women can be carriers of hemophilia, also a person (male or female) who is asymptomatic can be a carrier.A carrier is a person who is asymptomatic, that is he or she is not affected by the condition of hemophilia but can pass it on.Carrier of hemophilia has the following alleles - XhX, XhYThe alleles for a male with hemophilia is - XhYThe alleles for a male with normal blood clotting is XHYThe alleles for a female with normal blood clotting is XXThe alleles for a female with with hemophilia is XhXNote that the treatments for hemophilia include : clotting factor replacements andgene therapy.What causes hemophilia?Hemophilia is a genetic bleeding condition in which the blood fails to clot normally. This can result in both spontaneous and post-injury or surgical bleeding. Blood includes several proteins known as clotting factors that can aid in the prevention of bleeding.
Despite its rarity, acquired hemophilia is a dangerous illness in which severe bleeding can occur in a substantial percentage of patients (70%) and is fatal in roughly five to ten percent of cases.
Learn more about hemophilia:
https://brainly.com/question/18916729
#SPJ1
I need someone to explain and answer this question
Answer:
4. Sperm - Transport genetic Material
Explanation:
The uterus is to house and grow a fetus. The testis house the sperm and male hormones. The ovaries are where the eggs form and the female hormones estrogen and progesterone are made. Lastly the sperm is the only correct option. Sperm - Transport genetic Material
) the main function of the respiratory system is to . a) transport oxygen, nutrients, and wastes to and from body cells and tissues b) produce sperm and eggs c) supply the body with oxygen and remove carbon dioxide d) control body activities through hormones released into the blood e) break down food and deliver the products to the blood for dispersal
Answer: C. Supply the body with oxygen and remove carbon dioxide.
Explanation:
if a needle punctures the serous membranes around the lungs, the first layer that the needle will go through is the .
If a needle punctures the serous membranes around the lungs, the first layer that the needle will go through is the Parietal Pleura.
The superior surface of the diaphragm and the thoracic wall are lined with parietal pleura. The mediastinum's lateral walls are formed as it travels around the heart. As the visceral pleura, the pleura covers the outside of the lungs. The fluid in the pleural cavity's surface tension holds the pleura together. A pleura is a serous membrane with two layers of membranous tissue that folds back on itself to produce a pleural sac.
The parietal pleura, which connects to the chest wall, is the name of the outer layer. The lungs, blood arteries, nerves, and bronchi are all covered by the inner layer, which is known as the visceral pleura.
For more such questions lungs refer to:
https://brainly.com/question/28459387
#SPJ4
suppose that an elephant with the genotype eeffgghh reproduces with an elephant with the genotype eeffgghh. what is the probability that a baby elephant (called a calf) would have the genotype eeffgghh?
The probability that a baby elephant (calf) will have the genotype eeffgghh is 1.0 or 100%.
This is on the grounds that both parent elephants have a similar genotype eeffgghh, and that implies they are homozygous for every one of the alleles that make up their genotype. At the point when these two elephants repeat, every allele for an allowed quality has an equivalent opportunity of being given to the posterity, so the likelihood of getting the eeffgghh genotype from the two guardians is 1.0 or 100 percent. All in all, all posterity from these guardians will have similar genotype as the guardians, eeffgghh. If an elephant with the genotype eeffgghh reproduces with another elephant that also has the genotype eeffgghh, there is a 100% chance that their baby elephant (calf) will have the same genotype, eeffgghh.
To learn more about genotype, refer:
https://brainly.com/question/29156144
#SPJ4
you made a wet mount slide of each blood/solution mixture when testing for tonicity. what did you learn from this?
When testing for tonicity, you made a wet mount slide of each blood/solution mixture. You learned that the cells had shriveled (crenated) in the tube with the highest concentration of solutes.
Tonicity in cells is the ratio of the solute concentration outside the cell to the solution concentration in the cytoplasm. In this activity, the tonicity of each solution was determined by placing blood cells in various concentrations of solutions.
When the cells are placed in a solution that is extremely concentrated (hypertonic), the water that was inside the cell moves outside, causing them to shrink (crenate). On the other hand, when the solution is hypotonic, the cells will absorb more water and eventually burst.
Know more about tonicity here: https://brainly.com/question/28630548
#SPJ4
(Complete question)
You made a wet mount slide of each blood/solution mixture when testing for tonicity. What did you learn from this?
Both opaque tubes contained completely normal-looking blood cells.
The difference in tonicity did not affect the red blood cells at all.
The temperature had a significant effect on the red blood cells.
The red blood cells were too small to block light.
In the tube with the highest concentration of solutes, the cells had shriveled (crenated).
What can you ask about creating a model to represent the breakdown of fresh water?
Answer:
The most reasonable and realistic ways to represent these bodies of water would be by drawing a picture, creating a map, or building a model.
Explanation:
right
a microbiologist is reading stool culture plates. she is looking for enteric pathogens on the mac plate. what do they look like? a. small, orange colonies b. clear, colorless colonies c. large, bright pink colonies d. small, mucoid, green colonies
A microbiologist is reading stool culture plates. she is looking for enteric pathogens on the mac plate they look Clear, colorless colonies.
Immunosuppression brought on by the human immunodeficiency virus (HIV) makes individuals more susceptible to infections. Enteric bacterial pathogens with the potential to cause serious illness in HIV-infected patients include Salmonella species, Campylobacter species, Shigella species, Clostridium difficile, and several strains of Escherichia coli. Many variables, including immune status (determined by CD4+ T cell count), the use of highly active antiretroviral therapy (HAART), and prevention, might affect the signs, duration, and potential for severe symptoms of enteric bacterial infections. Previous studies have demonstrated that patients with lower CD4+ T cell counts are more susceptible to developing bacterial diarrhea. Lower CD4+ T cell counts were also associated with an increased risk of bacteremia caused by Shigella, Campylobacter, and Salmonella.
To know more about stool culture click here:
https://brainly.com/question/28233931
#SPJ4
Can stem cell-based theory used for the brain and spine?
Answer:Yes, stem cell-based therapies can be used for the brain and spine.
Explanation:
Yes, stem cell-based therapies can be used for the brain and spine.
