Stem cells that will form t lymphocytes mature in the stem cells that will form t lymphocytes mature in the:_____.
a. liver.
b. thymus.
c. bone marrow.
d. kidneys.
e. spleen.
Answers
Stem cells that will form t lymphocytes mature in the stem cells that will form t lymphocytes mature in the Thymus.
T cells proliferate and differentiate into memory T cells, helper, regulatory, or cytotoxic T cells in the thymus. After that, they are planted into perivascular tissues or moved around by the lymphatic or blood systems.
Thymus, pyramidal lymphoid organ located just below the sternum at the level of the heart in humans. The organ is called the thymus because its shape resembles that of a thyme leaf.
The organ is composed mainly of two types of cells called respectively lymphocytes and reticular cells. The reticular cells form a loose network like in a lymph node, while the spaces between them are filled with lymphocytes. The cortex, characterized by its high concentration of lymphocytes, is the site of intense lymphocyte proliferation. Lymphocyte proliferation in the thymus is evenly distributed throughout the cortex and not in the germinal centers as is the case in other lymphoid tissues. Some of the daughter cells - called T cells (derived from the thymus) - produced in the cortex migrate to the marrow, where they enter the bloodstream through the medullary veins and join the lymphocytes in the peripheral blood and lymphoid organs.
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Related Questions
Plants are to the carbon cycle, as __________ are to the nitrogen cycle
Answers
Answer:
Microorganisms.
Explanation:
They break down dead things and release nitrogen back into the soil and atmosphere.
3x + 2y = 6 is an equation in standard form.
Answers
Answer:
3x+2y=6xy because we have to add
In reef-building corals, a symbiotic relationship exists between corals and a type of algae that live in their tissues. The corals gain energy and oxygen from this association, while the algae obtain carbon dioxide, nitrogen, and a stable habitat. This type of relationship is best categorized as
Answers
Answer:
Mutualism
Explanation:
In mutualism, both of the organisms benefit from the relationship.
This situation is an example of mutualism, as both the algae and corals benefit.
The algae benefit by receiving carbon dioxide, nitrogen, and a stable habitat. Likewise, the corals also benefit by gaining energy and oxygen.
So, this relationship is best categorized as mutualism.
two technologies, rna-seq and dna microarrays, are important in the study of ___. multiple choice question. proteomics gene expression genome sequence mutagenesis
Answers
RNA-seq and DNA microarrays are important technologies in the study of proteomics, gene expression, genome sequence, and mutagenesis. RNA-seq is a powerful technique for measuring gene expression. It uses RNA sequencing to identify and quantify the expression levels of genes in a sample. DNA microarrays use fluorescent tags to measure gene expression levels across the entire genome.
To start using either of these technologies, scientists need to prepare samples of nucleic acid from their research organism and obtain the appropriate reagents. After that, they will need to design the experiment, based on what they want to measure. Finally, they can run the experiment and analyze the data to gain insight into their research.
Overall, RNA-seq and DNA microarrays are important tools in the field of genomics and allow researchers to gain a better understanding of gene expression, genome sequence, and proteomics. By combining data from these two technologies, scientists can gain a greater insight into their research. For more similar questions on proteomics, gene expression, genome sequence, and mutagenesis, please use the hashtag
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To make an inference correctly, a reader should:_________a) explain how the inference is influenced by modern language.b) show how the inference impacts the language in the textc) provide evidence to support the inferenced) describe how the inference affects the plot.
Answers
Answer:
C
Explanation:
Without any inference and related test , a write up or text is a plain theory or just a summary.
17. Which physical law states that all orbits are conic sections?
A. Kepler's first law
OB. Kepler's third law
O C. Newton's laws
D. Kepler's second and third laws
Answers
Answer:
Keplar's First Law
Explanation:
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JHMS
What is a natural resource
Answers
Answer:
Natural resources are Earth materials used to support life and meet the needs of people.
Which of the following is an appropriate hypothesis to answer the question, why are leaves green?
A: To study the coloring of leaves, scientists grew 250 maple trees within a greenhouse over the course of six months and analyzed the structure of over 1,000 leaves.
B: Leaves are green due to the presence of chlorophyll, a pigmented compound found within the leaves.
C: Based upon the given data, which spans 25 years of research, scientists determined that leaves are green due to the presence of chlorophyll, a pigmented compound found within leaves.
D: Using the work of previous scientists and adding new data to their information, scientists have found that leaves are green due to the presence of chlorophyll, a pigmented compound found within leaves.
PLEASE HELP FAST !!!!!!!!!!!!!!!!!
Answers
Answer:D
Explanation:
Answer:
D. Using the work of previous scientists and adding new data to their information, scientists have found that leaves are green due to the presence of chlorophyll, a pigmented compound found within leaves.
Explanation:
Describe in detail how enzymes function, using other digestive enzymes as examples.
Answers
The proteins known as enzymes serve as biological catalysts (biocatalysts). Chemical processes are hastened by the catalysts.
Substrates are molecules that enzymes may interact with, while products are molecules created by the enzyme from the substrates. The proteins that make up the enzymes are made up of one or more polypeptide chains. The enzymes also feature an active site, which is composed of specific amino acid R groups and offers a special chemical environment. The body naturally produces enzymes. For instance, enzymes are needed for the correct operation of the digestive system. In it, the pancreas, stomach, and small intestine create the majority of the digestive enzymes. The enzymes may be retrieved and utilized again since they act as catalysts for several biological processes and are not consumed in chemical reactions.
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What type of system is required to maintain the amount of sugar in the blood at a certain
level, making sure it does not rise too high or fall too low?
Answers
Answer:
The Digestive system.
Explanation:
Even though the Cardiovascular system pumps the blood in the body, blood sugar is dependent on the regulating hormones insulin and ketone. Which are created in the liver. And the liver is part of the Digestive system. Diabetes, hypoglycemia and hyperglycemia are results of a faulty liver.
When sweat glands become more sensitive to aldosterone after acclimation, they:
-reduce the volume of sweat that is secreted
-secrete sweat at a lower core temperature
-increase the volume of sweat that is secreted
-reduce sweat's sodium content
Answers
When sweat glands become more sensitive to aldosterone after acclimation, they increase the volume of sweat that is secreted.
Aldosterone is a steroid hormone that is produced by the adrenal gland and is responsible for regulating sodium and water balance in the body. Aldosterone signals the kidneys to reabsorb sodium and excrete potassium. It also causes sweat glands to increase their production of sweat. When an individual acclimates to a warm or hot environment, their sweat glands become more sensitive to aldosterone. This increased sensitivity results in the sweat glands producing more sweat, which helps the body to cool down and maintain its core temperature.
The question was about the effect of sweat glands becoming more sensitive to aldosterone after acclimation. The answer is that they increase the volume of sweat that is secreted. This adaptation allows individuals to tolerate hotter environments and maintain their performance in those environments.
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What is the differences between gmo and transgenic cell?
Answers
Answer:
Differences between GMO and the Transgenic cell is given below:-
Explanation:
Genetically modified organisms (GMOs):-
Genetically modified organisms ( GMOs) are those species that used genetic engineering techniques to change their genomes. We have novel gene configurations which do not occur throughout the species' genetic variability. This may require the addition of genes or the silencing of the. GMO genes.Transgenic cell:-
Transgenic organisms represent a particular example of GMOs. They are when genome modification includes the genetic material from another species. Like GloFish, marine anemones have genes inserted in them and are thus called transgenic.I need complete sentences pls
Answers
Answer:
violet light
Explanation:
The reason for this is because out of the visible spectrum, red light is the longest wavelength light that the photosynthesis process can use, but it has the least energy.
What type of vessel is built to handle the highest pressure of any vessel in the cardiovascular system?
A. muscular artery
B. Metarteriole
C. Elastic artery
D. Arteriole
Answers
Elastic artery is built to handle the highest pressure of any vessel in the cardiovascular system. So, the correct option is C.
What is Circulatory and Cardiovascular system?Blood circulatory system is defined as the set of organs that includes the heart, blood vessels and blood that circulates throughout the body of a human or other vertebrate where the cardiovascular system is included that is known as the vascular system , which is made up of the heart and blood vessels.
The circulatory system is divided into two parts namely the systemic circulation or circuit and the pulmonary circulation or circuit. Elastic arterioles are built to handle the highest pressures of any vessel in the cardiovascular system.
So, the correct option is C.
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Maxwell is evaluating the chemical equation shown below. (Note: The same equation is described in both words and chemical formulas.) glucose + oxygen → carbon dioxide + water C6H12O6 + 6O2 → 6CO2 + 6H2O Which statement is most useful for Maxwell to include in his evaluation?
A. The equation describes the process of photosynthesis that occurs in plants and green algae when light is present.
B. The equation describes both the processes of cellular respiration and fermentation, both of which occur in all organisms.
C. The equation describes the process of cellular respiration that occurs in many organisms when oxygen is available.
D. The equation describes both the processes of cellular respiration and photosynthesis, one of which occurs in all organisms.
Answers
Answer:
C. The equation describes the process of cellular respiration that occurs in many organisms when oxygen is available.
Explanation:
The given equation strictly describes the process of cellular respiration that occurs in many organisms when oxygen is available.
This is known as aerobic respiration.
In this process, oxygen gas combines with glucose in series of metabolic step ways. This in turn liberates energy for use by the body. The waste product is usually oxygen gas and carbon dioxide. The carbon dioxide is release into the environment.PLEASE ANSWER ASAP!!!!!!
Why is the timing of a mutation in relation to fertilization important in whether it can be passed onto offspring?
Answers
Answer:
Since all cells in our body contain DNA, there are lots of places for mutation to occur; however, some mutations cannot be passed on to the offspring and do not matter for evolution.
Explanation:
I hope this answers your question...
1. You are a doctor working at a hospital. You want to test a new drug for cancer patients who are being treated in your hospital. You have a good feeling that this drug will work. You have 100 patients on which to test your drug. a. Hypothesis b. Experiment c. What is the control group d. What is the experimental group e. The independent variable f. The dependent variable
Answers
Answer:
An experimental group is a group that receives the variable being tested in an experiment. The control group is the group in an experiment that does not receive the variable you are testing.
Explanation:
Control group, the standard to which comparisons are made in an experiment. ... A typical use of a control group is in an experiment in which the effect of a treatment is unknown and comparisons between the control group and the experimental group are used to measure the effect of the treatment.
The control group would be the group you keep control as you would not change anything about it throughout the course of the experiment. The experimental group you would give the experimental drug to.
once the perfume molecules reach the other side of room , what do the perfume molecules do
Answers
Consider the following two statements about succession.
Student 1:
Matthew - As succession begins, communities tend to be dominated by mostly K-selected species. As succession continues, r-selected species tend to compete better and therefore become more and more common.
Student 2:
Iman - As succession begins, communities tend to be dominated by mostly r-selected species. As succession continues, K-selected species tend to compete better and therefore become more and more common.
Which student is correct?
a. Provide a rationale for your answer (2 marks)
b. Provide a specific example of succession which includes at least one example of an r-selected and one example of a K-selected species. (1 mark)
Note - No marks are earned by simply agreeing with either Matthew or Iman
Answers
Which three statements provide reasons that scientists are considering renewable sources of energy?
Answers
These are the three explanations that give reasons that scientists are considering renewable source of energy:
1. Renewable sources are assets implies they are old and reliable sources.
2. Most renewable sources are effectively accessible in nature.
3. Renewable resources are cost-effective in contrast with non-renewable resources.
A renewable energy source implies energy that is feasible, that can't run out, or is unending, similar to the sun. It is additionally named 'alternative energy'. These assets are fit for recovery. The recovery of these sources includes a few biological cycles on a time scale. Sun, water, air, and heat from the earth are sustainable sources that we can use to make solar-based, tidal, wind, and geothermal energy. Renewable energy is additionally called green or eco energy.
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Restate Boyle’s Law in your OWN WORDS.
Please someone help!!
Answers
Answer:
It states that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature; i.e., in equation form, pv = k, a constant.
Explanation:
what are the functions of simple sugars
Answers
Answer: produce a spike in blood glucose, providing the body with a short-lasting source of energy.
Explanation:
engineering osteoarthritic cartilage model through differentiating senescent human mesenchymal stem cells for testing disease-modifying drugs
Answers
The engineering of an osteoarthritic cartilage model involves the differentiation of senescent human mesenchymal stem cells for the purpose of testing disease-modifying drugs.
The engineering of an osteoarthritic cartilage model is a research approach aimed at creating an in vitro system that mimics the characteristics and behavior of cartilage affected by osteoarthritis. Osteoarthritis is a degenerative joint disease characterized by the breakdown of cartilage tissue.
In this process, senescent human mesenchymal stem cells are used as the starting cell population. Senescence refers to the state of cell aging and reduced functionality. These cells are then induced to differentiate into chondrocyte-like cells, which are the cells responsible for producing and maintaining cartilage.
By differentiating senescent human mesenchymal stem cells into chondrocyte-like cells, researchers can create a model that closely resembles osteoarthritic cartilage. This model can be used to study the disease's progression, test the efficacy of disease-modifying drugs, and explore potential therapeutic interventions.
By subjecting the engineered osteoarthritic cartilage model to different disease-modifying drugs, researchers can observe and analyze the effects of these drugs on the cartilage tissue. This approach provides valuable insights into the potential effectiveness of different treatment strategies and helps advance our understanding of osteoarthritis and its management.
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Amino acids build
A. proteins
B. monomers
C. nucleic acids
Answers
Answer:
A. proteins
Explanation:
Amino acids builds up the proteins.
dentify a true statement about 5'adenosine monophosphate activated protein kinase (ampk). multiple choice question. it regulates numerous muscle signaling processes. it inhibits glucose uptake during exercise. it is activated during low-intensity interval training. it inhibits mitogen-activated kinase.
Answers
5'adenosine monophosphate-activated protein kinase (AMPK) is a crucial cellular energy sensor and regulator that plays a significant role in maintaining energy homeostasis. A true statement about AMPK is that it regulates numerous muscle signaling processes.
This enzyme is activated in response to various cellular stressors that deplete energy levels, such as exercise, hypoxia, and nutrient deprivation.
During exercise, AMPK activation stimulates glucose uptake and fatty acid oxidation in skeletal muscles, which enhances energy production and supports muscle function. This activation results in the regulation of multiple signaling pathways, influencing metabolism, protein synthesis, and gene expression. Through these mechanisms, AMPK promotes efficient energy utilization and adaptation to exercise, ensuring that muscles can continue to function effectively under various conditions.
It is important to note that AMPK does not inhibit glucose uptake during exercise; rather, it enhances it. Additionally, AMPK is not specifically activated during low-intensity interval training, as its activation is associated with energy demands and can occur in various types of exercise. Lastly, AMPK's primary role is in cellular energy regulation, not directly inhibiting mitogen-activated kinase, although there may be indirect interactions between these pathways.
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Which process makes a copy of a DNA
molecule?
A. mutation
B. replication
C. transcription
D. translation
Answers
Answer:
replication
Explanation:
makes cope of itself during cell division
The study of environmental science:
Describe the key features of Inland Grey Box Grassy
Woodland.
Answers
The Inland Grey Box Grassy Woodland is characterized by the dominance of Eucalyptus microcarpa (Grey Box) trees, diverse grasses, and an open canopy structure. It supports high biodiversity, adapts to arid conditions, and provides valuable ecosystem services.
Here are the key features of this selected vegetation type:
1. Dominant tree species: The dominant tree species in the Inland Grey Box Grassy Woodland is Eucalyptus microcarpa, commonly known as the Grey Box. This species is a medium-sized to large tree that can reach heights of up to 20-30 meters. It has rough, fibrous bark that is greyish in color, hence the name "Grey Box."
2. Understory vegetation: The understory of this woodland typically consists of a diverse range of grasses, herbs, and shrubs. Some common grass species include Themeda triandra (Kangaroo Grass) and Poa labillardieri (Common Tussock Grass). These grasses are well-adapted to the local climate and soil conditions.
3. Canopy structure: The Inland Grey Box Grassy Woodland usually has an open canopy structure, with the Grey Box trees scattered throughout the landscape. This open structure allows for a moderate amount of sunlight to reach the ground, supporting the growth of diverse grasses and understory vegetation.
4. Biodiversity value: This vegetation community is known for its high biodiversity value. It provides habitat for a variety of wildlife, including birds, reptiles, mammals, and insects. The diverse plant species within this woodland support different ecological functions and provide food and shelter for various animals.
5. Adaptations to arid conditions: The Grey Box and other plant species in this woodland have adaptations that allow them to thrive in arid or semi-arid environments. For example, Grey Box trees have deep root systems that enable them to access water from lower soil layers. The grasses and herbs often have drought-resistant traits, such as deep roots or the ability to go dormant during dry periods.
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What type of bonds connect the sugars to phosphates and the sugars to bases? Weak or strong?
What type of bond connects a base to a complementary base in a base pair? Weak or strong?
What type of bond connects a base to a complementary base in a base pair? Hydrogen or Covalent?
Answers
Answer-
All the bonds are hydrogen bonds and this bond is strong
why do urea levels increase after filtration
Answers
Urea levels increase after filtration because filtration can increase the concentration of urea in the filtrate. Filtration is a common method used in the renal system to remove waste products, such as urea, from the blood.
During filtration, fluid and small solutes, including Urea levels, pass from the blood in the glomerulus (a network of blood vessels in the kidney) into Bowman's capsule, which acts as a filter. The filtered fluid, or filtrate, then enters the renal tubules, where reabsorption and secretion occur.In some cases, the concentration of urea in the filtrate may increase due to insufficient reabsorption of urea back into the blood, or due to an increase in the production of urea. This results in an increase in the concentration of urea in the filtrate and a corresponding increase in the urea levels in the blood .Elevated urea levels can indicate a variety of conditions, including kidney disease, dehydration, and liver disease. Therefore, it is important to regularly monitor urea levels and to address any increase in urea levels promptly to prevent further complications.
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Where is the youngest rock in the Atlantic Ocean found?
plz hurry
Answers
Answer:
Mid-Atlantic Ridge
Explanation:
This is because they are deep down, near the earth's crust .