Itp, or immune thrombocytopenic purpura, is brought on by antibody destruction of platelets in the spleen. The correct answer is (C).
Immune thrombocytopenic purpura (ITP) is a rare autoimmune disorder in which the immune system destroys blood-clotting platelets, preventing a person's blood from properly clotting. Although the exact cause of ITP is unknown, it is thought to be caused by a malfunction of the immune system that may be brought on by viral infections.
Idiopathic thrombocytopenic purpura (ITP) is a condition characterized by a non-blanching purpuric rash brought on by idiopathic (spontaneous) thrombocytopenia. A type II hypersensitivity reaction is the cause of ITP. The production of antibodies that target and destroy platelets is the cause.
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Q- Idiopathic thrombocytopenic purpura (ITP) is caused by:
a. a vaccine-induced hypersensitivity reaction against platelets.
b. drug-induced platelet toxicity.
c. antibody destruction of platelets in the spleen.
d. virus-induced hyperproliferation of platelets.
the enterotype (dominance of a certain group of bacteria in the large intestine) changes frequently in an adult, especially when dietary habits change. select one: true false
Even after prolonged diet changes, current research does not observe complete (ex)changes in enterotypes in adults. The correct answer is false.
Traditionally, three enterotypes of bacterial patterns have been described: Prevotella (enterotype 2), Ruminococcus (enterotype 3), and Bacteroides (enterotype 1).
Type 1 has a lot of Bacteroides, while type 2 has few Bacteroides but a lot of Prevotella, and type 3 has a lot of Ruminococcus. It has been questioned whether categorizing by enterotype is useful.
A relatively new field is the study of human gut bacteria and how they work in the body. Enterotypes are groups of bacterial communities in the gut that make it possible for researchers to identify traits that unify individuals.
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a pre-mrna molecule isolated from cells is found to bind to four snrnps. what does this imply about the structure of the pre-mrna?
The binding of four snRNPs (small nuclear ribonucleoproteins) to a pre-mRNA molecule implies that the pre-mRNA molecule is undergoing splicing.
During splicing, introns (non-coding regions) are removed from the pre-mRNA, and exons (coding regions) are spliced together to form a mature mRNA that can be translated into protein.
The snRNPs are a key component of the spliceosome, a large complex of RNA and protein molecules responsible for catalyzing the splicing reaction. Each snRNP contains a small RNA molecule called an snRNA (small nuclear RNA) that base pairs with the pre-mRNA at specific sites to facilitate splicing.
Therefore, the fact that four snRNPs are bound to the pre-mRNA molecule suggests that the splicing process is underway, and that the pre-mRNA molecule is in the process of being converted into a mature mRNA molecule through the removal of introns and the splicing together of exons.
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which is the function of thyroid hormones in adults? select all that apply. one, some, or all responses may be correct.
Thyroid hormones;
Regulating metabolism
Maintaining body temperature
Promoting growth and development
Regulating heart and digestive function
Maintaining bone health
Thyroid hormones play a vital role in adult bodies, including regulating metabolism, maintaining body temperature, controlling heart rate, and lipid metabolism.
The following are the functions of thyroid hormones in adults: Regulating metabolism: Thyroid hormones help to regulate metabolism, which is the process by which the body transforms food into energy. Thyroid hormones regulate the rate at which the body utilizes the energy it receives from food. Maintaining body temperature: Thyroid hormones are involved in maintaining body temperature.
Thyroid hormones aid in the production of heat, which helps to maintain body temperature. Body temperature drops when thyroid hormone levels are low. A high level of thyroid hormone may cause a high fever. Control of heart rate: Thyroid hormones influence heart rate by regulating the sympathetic nervous system's activity. The sympathetic nervous system regulates the body's “fight or flight” response, which controls the body's response to stress.
Thyroid hormones regulate heart rate and help to keep it at a normal level. Lipid Metabolism: Thyroid hormones affect the metabolism of cholesterol and triglycerides. These hormones increase the breakdown of fats and decrease the synthesis of cholesterol by the liver, helping to lower blood cholesterol levels
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Which evidence provided in Passage 2 is irrelevant to the author's claim that the supply of
renewable energy is much less than the supply of nonrenewable energy?
While energy sources are used to create energy, they release dangerous greenhouse gases like carbon dioxide. When compared to using petroleum or coal, supplying renewable energy to generate electricity produces far less emissions.
Are fossil fuels more rapid than renewable energy?Resources that cannot be replenished quickly run out. Including all reason, persons are dead once they're away. Renewable energy sources are so plentiful or get renewed so quickly that they theoretically can never run out. The non-renewable commodities which are exploited its most frequently are fossil fuels.
Why is renewable energy being used less frequently?Two essential thing were pricing and infrastructure. The major barriers to the development for renewable power are ultimately considered to relate to its operational or economic issues. Whenever the infrastructure enabling them is expanded, sources of renewable energy may gain popularity and become more often used.
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What resource do plants not compete for?
Answer:
CO2
Explanation:
Answer: .they do not compete
Explanation: because sunlight and water are so common, plants do not compete for these resources
How much of a 14% solution is needed to make 25 ml of a 6% solution? Record your answer to one decimal place.
Answer: The answer is 10.71ml of solution.
Explanation:
To create a 6% solution of a certain substance from a 14% solution, we must first determine how much of the 14% solution should be mixed with a solvent to yield a 6% solution.
Let x denote the volume of the 14% solution required in millilitres. We can write the following equation because we are combining x ml of the 14% solution with a solvent to produce 25 ml of the 6% solution:
0.14x + 0(25-x) = 0.06(25)
When we simplify and solve for x, we get:
x = (0.06(25))/(0.14)
x = 10.71 ml
As a result, we need 10.71 ml of the 14% solution and the remaining 14.29 ml of solvent to create 25 ml of a 6% solution.
christina is allergic to bee stings and was just stung. what phagocyte is carrying the histamines as her body reacts to the sting?
Histamines are not carried by phagocytes. They are released by mast cells and basophils, which are types of white blood cells called granulocytes.
When Christina is stung by a bee, the venom from the bee triggers the release of histamines from mast cells and basophils. Histamines cause the blood vessels in the area to dilate, which allows more blood flow to the area. This leads to redness and swelling. Histamines also increase the permeability of blood vessels, allowing immune cells to more easily leave the bloodstream and enter the tissue to fight off any potential infection from the sting.
Phagocytes are a type of immune cell that engulf and destroy foreign particles, including bacteria, viruses, and dead cells. While phagocytes are not directly involved in carrying histamines during an allergic reaction, they do play a crucial role in the immune response to bee venom by engulfing and destroying any foreign particles that may have entered the body through the sting.
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Help................................................................................
The reason a computer model will benefit the scientist is B, Using the model will give more accurate study results.
What does a computer model do for blood samples?A computer model could benefit the scientist by providing a more controlled and precise environment for studying blood cells. The model could allow the scientist to manipulate different variables and observe their effects on blood cells without the complexities and variability of actual blood samples.
This could lead to more accurate and reproducible results. Additionally, computer models can be used to simulate complex biological processes that are difficult to observe or measure directly, which could provide insights that are difficult to obtain through traditional experimental methods.
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Image transcribed:
Question 3 of 10
A scientist needs to study blood cells for medical research. Why might a computer model benefit the scientist?
A. The model would enable the scientist to see what the flow of blood cells would look like when slowed down.
B. Using the model will give more accurate study results.
C. The blood cell is too large to study, and the model is smaller.
D. The model can be adjusted until the scientist gets the desired results.
when describing a type of microorganism that must depend on the permissive host to replicate, which type of microorganism is being discussed?
The microorganisms that cannot replicate outside of the host are viruses.
Viruses are obligate intracellular parasites, which means that they cannot replicate outside of a host cell. To reproduce and make more virus particles, a virus must infect a permissive host cell and hijack its cellular machinery to make copies of itself. This process typically harms or destroys the host cell and can lead to disease or other negative effects.
Different viruses have different host ranges, meaning they can only infect certain types of cells or organisms. the human immunodeficiency virus (HIV) can only infect certain types of human immune cells, while the influenza virus can infect a variety of different animal species, including humans, birds, and pigs. Therefore viruses cannot replicate outside of the host.
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Anatomy
100 points.
I need help, please. This is my last assignment.
Thanks to whoever helps.
the correct answer is A because
Physiology is the science of life. It is the branch of biology that aims to understand the mechanisms of living things, from the basis of cell function at the ionic and molecular level to the integrated behaviour of the whole body and the influence of the external environment.
the researchers placed white and brown mouse models both in abandoned fields on the mainland (dark soil) and on sand dunes on the islands (light soil) and then measured the percentage of models that were attacked by predators. what is the take-home message of the data? do the data support or reject the hypothesis that mouse color is adaptive?
The take-home message of the data is that the percentage of mice attacked by predators was dependent on the color of their fur and the color of the soil they were placed on. The data support the hypothesis that mouse color is adaptive
Specifically, the white mice placed on the sand dunes (light soil) had a higher percentage of attacks compared to the white mice on the mainland (dark soil) and the brown mice on the sand dunes. These results suggest that mouse color can be an adaptive trait that provides protection from predators based on the environment.
The data support the hypothesis that mouse color is adaptive because the results indicate that the color of the mice played a role in their survival rate based on the environment they were placed in.
Therefore, the data provide evidence to support the idea that mouse color can be an adaptive trait in response to environmental factors such as soil color and the presence of predators.
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Dylan keeps his pet female rabbit in a cage in his backyard, allowing the rabbit to eat the grass that comes through the bottom of the cage. Dylan moves the cage every day so his rabbit will have enough new grass to eat. His brother buys another female rabbit and puts it into the same cage with Dylan's rabbit.
What will Dylan need to do differently due to the new rabbit?
S7L4.c
Dylan keeps his pet female rabbit in a cage in his backyard, allowing the rabbit to eat the grass that comes through the bottom of the cage. Dylan moves the cage every day so his rabbit will have enough new grass to eat. His brother buys another female rabbit and puts it into the same cage with Dylan's rabbit.
What will Dylan need to do differently due to the new rabbit?
S7L4.c
use a divider in the cage that separates it into two equal parts
move the cage less often and wait for the grass to regrow
move the rabbits to a smaller cage so they will eat less grass
move the cage more often so there will be enough grass for both rabbits
GIVE THE GUY ABOVE BRAINLIEST
Make a Slogan related to Organ Systems: Reproductive, Endocrine and Nervous – roles, functions and regulation in our body.
Answer: "Power Trio of the Body: Reproductive, Endocrine, Nervous - Regulating, Functioning, Thriving!"
Explanation:
what is the chemical equation for alcoholic fermentation after glycolysis not in words
Answer:
CH 3 COCOO +H→CH3CHO+CO
Answer:
C6H12O6(aq) 2C2H5OH(l) + 2CO2(g) is a balanced chemical equation for the fermentation of glucose to ethanol. (yeast acts as a catalyst in this reaction.) One molecule of glucose creates two molecules of carbon dioxide and two molecules of ethanol, as shown in the figure on the right.
Explanation:
Brainliest pls :)
if a red-on, green-off retinal ganglion cell receives red light in the center of its receptive field and green light in the surround, what happens? group of answer choices
The center of its receptive is called "lateral inhibition"
When a red-on, green-off retinal ganglion cell receives red light in the center of its receptive field and green light in the surround, the following sequence of events occurs:
The red light in the center of the receptive field stimulates the cell's red-sensitive receptors, causing depolarization of the cell.
The green light in the surround of the receptive field stimulates the cell's green-sensitive receptors, causing hyperpolarization of the cell.
The net effect of the center-surround antagonism is that the cell's firing rate decreases, as the hyperpolarization caused by the green light in the surround counteracts the depolarization caused by the red light in the center.
This response is called "lateral inhibition," which is a fundamental process in visual perception that enhances the contrast and sharpness of edges and boundaries in visual stimuli.
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protists are extremely diverse and thus pose a challenge to their classification. which statement is not true concerning protists and their classification?
A statement that is not true concerning protists and their classification is that protists are not unicellular or colonial.
The given statement is not true concerning protists and their classification.The other true statements about protists and their classification are:
Protists are not classified as plants, animals, or fungi because they do not have characteristics that define these groups.
Protists are classified based on their mode of nutrition, whether they are autotrophs or heterotrophs.
Protists are unicellular or colonial organisms that share certain characteristics, such as being eukaryotic organisms with a cell nucleus.
Protists are extremely diverse, with more than 100,000 species having been identified to date.
Protists play essential roles in ecosystems as producers, decomposers, and symbionts, among other things.
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which statement about aneuploidy is true? one form of aneuploidy is a loss of both members of a homologous pair of chromosomes. most autosomal aneuploidies develop normally and have a normal life span. the rarest aneuploidies in humans are those of the sex chromosomes. aneuploidy is a change in number of chromosome sets.
The statement about aneuploidy is true A. one form of aneuploidy is a loss of both members of a homologous pair of chromosomes.
Aneuploidy refers to an abnormal number of chromosomes in an organism's cells, resulting from the loss or gain of one or more chromosomes. This situation is known as nullisomy, in which an organism has a chromosome count that is reduced by two compared to the normal diploid number. Aneuploidies can have various effects on an individual's development and health, depending on the specific chromosomes involved and the extent of the abnormality. Some aneuploidies can be viable, while others can result in severe developmental abnormalities or even be lethal. It is important to note that the majority of autosomal aneuploidies do not develop normally and do not have a normal life span.
On the other hand, some aneuploidies involving sex chromosomes can lead to relatively mild effects, allowing the affected individuals to survive. Aneuploidy differs from polyploidy, which is a change in the number of chromosome sets. While aneuploidy involves a change in the number of individual chromosomes, polyploidy involves a change in the entire set of chromosomes, resulting in organisms with multiple sets of chromosomes, such as triploidy (three sets) or tetraploidy (four sets).
In conclusion, aneuploidy is an abnormal condition where an organism's cells have an atypical number of chromosomes, often due to the loss or gain of one or more chromosomes. One form of aneuploidy, nullisomy, occurs when both members of a homologous pair of chromosomes are missing. Aneuploidies can have varying effects on development and health, depending on the specific chromosomes involved. Therefore, the correct option is A.
The question was incomplete, Find the full content below:
Which statement about aneuploidy is true?
A. one form of aneuploidy is a loss of both members of a homologous pair of chromosomes
B. The rarest aneuploidies in humans are those of the sex chromosomes.
C. Most autosomal aneuploidies develop normally and have a normal life span.
D. Aneuploidy is a change in the number of chromosome sets.
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Tell what real-life event happened and where about this picture. Fully explain how/why your event occurred. Be specific about the location.
An earthquake is started by a sudden slip on a fault. The margins of the tectonic plates become impermeable due to friction even though they are steadily shifting all the time.
When the force on the edge exceeds the friction, an earthquake occurs, releasing energy in the form of waves that travel through the earth's crust and cause the shaking we feel.
Tectonic plates are made up of the denser continental lithosphere and the less dense oceanic lithosphere, each of which is encased in a particular kind of crust. The formation of new (oceanic) crust along divergent margins through seafloor spreading makes up for the amount of material lost during the process of subduction, which involves one plate moving beneath another and dragging its edge down into the mantle along convergent boundaries.
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ITS TIMED PLEASE HURRY HELPP
1. A blood clot forms in an artery and fills the entire lumen in that area where the clot forms. What effect will this have on blood flow?
A. Blood flow will increase to the tissue supplied by the affected vessel
B. It will reverse the direction of flow in that vessel
C. The blood flow will not be affected, and the same amount of oxygen will reach the tissues in the are of the clot
D. The flow of blood will be blocked therefore no oxygen will reach the tissues supplied by the affected vessel
2. Which of the following can cause the viscosity of blood to increase?
A. There is a high concentration of blood cells and platelets relative to the volume of water in blood
B. There is a low concentration of blood cells and platelets relative to the water in blood.
C. A person puts a lot of honey in their tea, causing the blood to become sticky.
D. A person drinks a lot of water, and the volume of blood increases in vessels
3. Which of the following will cause an increase in blood pressure?
A. slow heart rate
B. inactivity
C. increased blood volume
D. not using any salt in food
4. Which statement best describes veins?
A. Blood vessels that contain oxygen-rich blood
B. Blood vessels with a small diameter that are in direct contact with cells
C. Blood vessels that transport blood to or towards the heart
D. Blood vessels that transport blood from the heart to other parts of the body
5. Select the statement which best describes one of the factors that can affect blood flow and its effect.
A. The narrowing of blood vessels decreases the resistance and leads to a faster blood flow
B. A high viscosity of blood causes an increased resistance in the blood vessels and leads to a slow blood flow
C. Eating a diet high in animal fat tends to increase blood flow.
D. LDL cholesterol helps the body get rid of HDL cholesterol which reduces plaque deposits
6. Which of the following best describes the connection between cardiovascular disease and age?
A. As people age, their blood vessels become more elastic, leading to less cardiovascular disease
B. As people age, plaque builds up in the arteries increasing vessel resistance, which leads to cardiovascular disease
C. As people age, the heart becomes more efficient increasing cardiac output
D. As people age, blood pressure decreases leading to less cardiovascular disease
1. A blood clot forms in an artery and fills the entire lumen in that area where the clot forms. D. The flow of blood will be blocked therefore no oxygen will reach the tissues supplied by the affected vessel. 2. A. There is a high concentration of blood cells and platelets relative to the volume of water in blood.
Define blood clot.When blood transitions from a liquid to a partially solid state, blood clots, which resemble gel-like clumps of blood, form in your veins or arteries. Clotting is a healthy process that prevents excessive bleeding when you are harmed. Blood clots that form in specific locations and don't naturally dissolve, however, might be harmful to your health.
Blood clots typically form in reaction to a blood vessel injury. The blood initially pools in one spot. To close up the cut or hole, two substances—platelets, a type of blood cell, and fibrin, a solid substance that resembles string—combine to form what is known as a platelet plug.
3. C. increased blood volume
4. C. Blood vessels that transport blood to or towards the heart
5. B. A high viscosity of blood causes an increased resistance in the blood vessels and leads to a slow blood flow
6. B. As people age, plaque builds up in the arteries increasing vessel resistance, which leads to cardiovascular disease
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Can someone help me please
The table showing the products of crude oil such as gasoline is found in the attachment.
What are the products of crude oil?Crude oil is a complex mixture of hydrocarbons that can be refined to produce a wide range of products, including:
Gasoline: a light liquid fuel used in internal combustion engines in cars and other vehicles.
Diesel fuel: a heavier liquid fuel used in diesel engines in trucks, buses, and other heavy-duty vehicles.
Jet fuel: a specialized fuel used in aircraft.
Heating oil: a fuel used for heating homes and buildings.
Liquefied petroleum gas (LPG): a mixture of propane and butane that is used as a fuel for heating, cooking, and transportation.
Lubricants: oils and greases used to reduce friction in machinery and engines.
Asphalt: a heavy, thick liquid used in road construction and maintenance.
Petrochemicals: chemicals derived from crude oil that are used to produce a wide range of products, including plastics, fertilizers, and pharmaceuticals.
Wax: a solid material used in candles, polishes, and other products.
The specific products obtained from crude oil depend on the refining process used, as well as the quality and composition of the crude oil.
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non-disabled humans can walk around with good coordination. zombies stagger around and seem clumsy. they bump into things, and often hold their arms out for balance. which part of their brain is likely damaged? group of answer choices hypothalamus cerebellum medulla pons
Basal ganglia collaborates with the frontal lobe and brain stem to organize movement and behavior, and the cerebellum, which is engaged in the coordination of motor movements, is used by zombies.
The cerebellum and basal ganglia, areas of the brain that regulate balance and fluid motion, have been proposed as potential culprits for the clumsiness of the zombies. They may be stumbling awkwardly towards their objective as a result of damage to these areas.
Zombies are incapable of making complex judgements because the virus eats away at the frontal lobes of the brain, which are involved in problem-solving. They are also unable to walk well due to cerebellar dysfunction. Additionally, these humanoids have an odd preference for consuming human flesh.
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Amylase is secreted in two regions of human alimentary. Why? Support your answer
with scientific evidence.
Answer:
Amylase is an enzyme that is involved in the breakdown of complex carbohydrates into simple sugars such as glucose. It is secreted in two regions of the human alimentary canal: the mouth and the pancreas
Explanation:
In the mouth, amylase is secreted by the salivary glands and begins the process of breaking down starch into maltose. the pancreas, amylase is produced and secreted into the small intestine. The pancreas produces both pancreatic amylase and salivary amylase, but the pancreatic amylase is more important because it can break down the remaining complex carbohydrates that have not been fully digested in the mouth. This is necessary because the small intestine is the primary site of nutrient absorption, and carbohydrates must be broken down into simple sugars before they can be absorbed by the body.
Amylase is secreted in two regions of the human alimentary canal because carbohydrates are present in different forms and need to be broken down into simpler forms before they can be absorbed by the body
Skin cells are lost daily even without injury. The cell cycle responds by promoting
reproduction.
repair.
synthesis.
growth.
Answer: reproduction
Explanation:
reproduction: means to remake something
repair is just for the DNA
synthesis is just making new ones by merging the DNA with others
growth increase the cell's size
which of the following are ways to allow for sustainable farming? question 8 options: a) using insectides such as round-up b) using manure and nitrogen fixating plants instead of synthetic fertilizer c) continuing to support the burning of fossil fuels and use of massive machinery in farming d) using monoculutre farming
The best way to allow for sustainable farming among the options provided is by using manure and nitrogen-fixating plants instead of synthetic fertilizer (Option B).
The correct answer is option b.
Sustainable farming is an agricultural approach aimed at meeting the food and fiber needs of the present population while preserving the resources for future generations. It is about adopting environmentally friendly practices that promote the health of the ecosystem and minimize pollution.
Using insecticides like Round-up (Option A) can harm beneficial insects and pollinators, leading to negative consequences for biodiversity and the overall health of the ecosystem. In contrast, sustainable farming encourages the use of biological pest control methods to manage pests.
Supporting the burning of fossil fuels and using massive machinery in farming (Option C) contributes to climate change and air pollution. Sustainable farming practices advocate for the use of energy-efficient equipment and renewable energy sources, reducing the overall environmental impact.
Therefore the correct answer is option b.
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if we assume that amygdala-dependent learning uses the same ltp mechanism as the hippocampus, what would likely happen if an nmda receptor antagonist (blocker) was infused bilaterally a mouse's amygdala?
If an NMDA receptor antagonist was infused bilaterally into a mouse's amygdala, the mouse would likely be affected with significant learning aspects, due to the changes in the synaptic plasticity.
Glutamate receptors of the NMDA (N-methyl-D-aspartate) type are essential for synaptic plasticity and are involved in a variety of learning processes. Despite the fact that NMDA-receptor-mediated processes are essential for synaptic plasticity, there may be additional ways wherein NMDA-receptor antagonistic activity can hinder learning.
It was discovered that inhibiting NMDA receptors in the amygdala blocked second-order fear conditioning. It's crucial to remember that this study was carried out on rats rather than mice. It's also crucial to point out that this study employed a particular learning method (fear conditioning) and a particular receptor antagonist (NMDA receptor antagonist).
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you have been asked to diagram the life cycle of plasmodium, the malarial parasite, in humans. in which organ would you show several stages of development of sporozoites?
The stages of development of sporozoites of Plasmodium, the malarial parasite, occur in the liver.
After being injected into the bloodstream by the infected mosquito, the sporozoites travel to the liver, where they infect liver cells and undergo several rounds of replication to form merozoites.
These merozoites are then released into the bloodstream, where they infect red blood cells and continue the life cycle of the parasite. Therefore, the liver would be the organ where several stages of development of sporozoites would be shown in the life cycle diagram of Plasmodium in humans.
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Why is climate change one of the most pressing issues that humans will face to survive as a species?
Answer:
1,Increased frequency and severity of natural disasters:
2, Rising sea levels: As the Earth's temperature continues to rise, the polar ice caps are melting at an alarming rate,
Explanation:
Improvements in technology over centuries enabled scientists to develop the cell theory. Rearrange the events below into the correct order. Place the oldest event at the top and the most recent event at the bottom.
Answer:
Robert Hooke observes cells in cork under a microscope.
Antonie van Leeuwenhoek observes single-celled organisms under a microscope.
Matthias Schleiden proposes that plants are composed of cells.
Theodor Schwann proposes that animals are composed of cells.
Rudolf Virchow proposes that all cells come from preexisting cells.
Correct order:
Robert Hooke observes cells in cork under a microscope.
Antonie van Leeuwenhoek observes single-celled organisms under a microscope.
Matthias Schleiden proposes that plants are composed of cells.
Theodor Schwann proposes that animals are composed of cells.
Rudolf Virchow proposes that all cells come from preexisting cells.
embryonic stem cells generated via therapeutic cloning are genetically identical to the cells of the person who donated the original somatic cell used for scnt. why is this important?
The fact that embryonic stem cells generated via therapeutic cloning are genetically identical to the cells of the person who donated original somatic cell used for SCNT (somatic cell nuclear transfer) is important because it has the potential to overcome immune rejection issues in cell-based therapies.
In traditional cell-based therapies, cells from a donor are transplanted into a recipient. However, in many cases, the recipient's immune system recognizes the donor cells as foreign and attacks them, leading to rejection of the transplanted cells. This can limit the effectiveness of the therapy and require the use of immunosuppressive drugs, which can have significant side effects.
In contrast, embryonic stem cells generated via therapeutic cloning are a perfect genetic match to the patient, and therefore, they are not recognized as foreign by the patient's immune system. This means that there is no risk of rejection and no need for immunosuppressive drugs, making therapeutic cloning a potentially powerful tool for personalized medicine.
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in the lab, you run an agarose electrophoresis gel. in the first lane, you load the molecular weight ladder. in lane 2, you load a dna sample that contains five dna fragments: 100 bp (basepairs), 250 bp, 1000 bp, 1500 bp and 1600 bp. which fragment in lane 2 would be the 250 bp fragment?
(B) DNA fragment in lane -2. The first well of the gel is filled with a DNA marker, commonly referred to as a size standard or a DNA ladder.
Since the fragments in the marker are known to be a certain length, we can use that information to estimate how big the fragments in the samples are. Plotting the log of the molecular weight for the various bands of a DNA standard against the distance travelled by each band will reveal the precise sizes of separated DNA fragments. Using comparison techniques makes estimating the sizes of unknowns simpler.
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in the lab, you run an agarose electrophoresis gel. in the first lane, you load the molecular weight ladder. in lane 2, you load a dna sample that contains five dna fragments: 100 bp (basepairs), 250 bp, 1000 bp, 1500 bp and 1600 bp. which fragment in lane 2 would be the 250 bp fragment?
a. a
b. b
c. c
d. d