Answer:
these differentiate as a result of signaling mechanisms. ... The daughter cells divides and after each division it becomes more specialized. When it reaches a mature cell type downstream (for example, becomes a red blood cell) it will no longer divide.
Answer:
stem cells are called upon to generate a particular type of cell, they undergo asymmetric cell division.
Explanation:
with asymmetric division, each of the two resulting daughter cells has it's own unique life course
after a macrophage ingests a pathogen, what does it do to the antigens?
Explanation:
After the macrophage ingests a pathogen, it creates an antigen on the surface of themselves, which signals the antigen to a corresponding helper T cell
Which substance cannot be broken down into simpler substances?
Answer:
A Elements
Explanation:
Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical means.
the structure that separates the cochlear duct from the tympanic duct is the
Answer:
the basilar membrane
Explanation:
The tympanic duct or scala tympani is one of the perilymph-filled cavities in the inner ear of humans. It is separated from the cochlear duct by the basilar membrane, and it extends from the round window to the helicotrema, where it continues as vestibular duct.
This food web illustrates some characteristics that ANIMALS have in common. Find all the animals. What do they all
have in common?
A)
They are all predators.
B)
They must consume their food.
C)
They all have a skeletal system
D)
They all recycle matter in the food web.
Answer:
B) They must consume their food.
Explanation:
I just did the test
Plants using the CAM pathway occur in many locations but are most common in very arid locations, such as deserts. What deserts occur in North America and where are these deserts located?
The desert that occurs in North America is the Great Basin Desert and it is located at Nevada of North America.
CAM pathway, which is also called Crassulacean Acid Metabolism, is a pathway that involves carbon fixation that occurs in plants growing in arid areas.
With this pathway these plants are able to photosynthesize during the day, but only exchange gases at night.
An arid habitat is an environment that is characterized by extreme lack of water, example is the desert.
In North America, the desert that occurs there is the Great Basin Desert. It spreads into different states which include:
NevadaWestern Utah, Eastern California, andIdaho.But the major part of Nevada is occupied by the Great Basin Desert.
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how many bases are needed to specify an mrna codon
Answer:
Three bases
Explanation:
What is 0.0000914 in scientific notation?
a b c or d
Answer:
The Answer is A
Explanation:
where does the light independent reaction take place
Answer:
stroma
Explanation:
The light-independent reactions represent the known Calvin–Benson–Bassham (CBB) cycle which takes place in the stroma of chloroplasts and is the primary pathway of carbon fixation of C3 plants [119].
what is the main function of integrins? PLS HELP ME I HAVE A MIDTERM TOMORROW!!!!
Answer:
Integrins regulate cellular growth, proliferation, migration, signaling and cytokine activation and release. They play an important role in cell proliferation and migration, aid tissue repair .
Explanation:
Integrity regulate cellular growth, proliferation, migration, signaling and cytokine activation and release. They play an important role in cell proliferation and migration, aid tissue repair .
cyber ethics and law are same in nature true or false
Answer:
True as a technonerd it is ive study it
Explanation:
PLEASE HELP!!
Gastric secretion would include all of these except
A. pepsinogen
D. mucous
E. gastrin
C. CCK
B. HCl
Answer:
C. CCK
Explanation:
Gastric juice contains pepsinogen, HCl, mucus, rennin, and gastrin hormone.
Cholecystokinin (CCK) is secreted by I-cells of duodenum.
The purpose of degrading cyclins is to stop the cell cycle from happening.
A. true
B. false
Which is NOT true about pedigrees?
a. They show only recessive disorders.
b. They can be used to predict disorders in a family.
c. They indicate the sex of an individual.
d. They are useful in inferring genotypes of individuals.
****GIving Brainlist****
Answer:
i think its this one c. They indicate the sex of an individual.
Which mechanism allows lipid-soluble substances to move through the membranes of endothelial cells of capillaries
Answer:
Diffusion.
Explanation:
The mechanism that allows lipid-soluble substances to move through the membranes of endothelial cells of capillaries is simple diffusion.
Simple diffusion is a passive transport mechanism that allows lipid-soluble substances to move across the membranes of endothelial cells in capillaries. This process occurs down a concentration gradient, from an area of higher concentration to an area of lower concentration, without the need for energy expenditure.
The membranes of endothelial cells, which make up the walls of capillaries, are composed of a lipid bilayer. Lipid-soluble substances, such as oxygen, carbon dioxide, steroid hormones, and certain lipid-soluble drugs, can readily diffuse through this lipid bilayer due to their ability to dissolve in and pass through the hydrophobic interior of the membrane.
Unlike lipid-soluble substances, water-soluble substances, such as ions and polar molecules, are unable to passively diffuse through the lipid bilayer. Instead, they rely on specific transport mechanisms such as facilitated diffusion or active transport to cross the endothelial cell membrane.
In the context of capillaries, simple diffusion allows lipid-soluble substances to move from the bloodstream through the endothelial cell membranes and into surrounding tissues or vice versa. This process plays a crucial role in the exchange of gases, nutrients, and waste products between the bloodstream and the tissues.
It is important to note that while simple diffusion allows for the passage of lipid-soluble substances, the movement of these substances can also be influenced by factors such as concentration gradients, molecular size, solubility, and the presence of transport proteins. However, the primary mechanism by which lipid-soluble substances traverse the endothelial cell membranes of capillaries is through simple diffusion.
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Two identical rectangles and squares, R and T, are arranged to form a larger square as shown. The area of square R is 1 square inch, and the perimeter of each rectangle is 7 inches. What is the perimeter of square T? Explain.
R
T
Because the area of square R is 1 square inch, its side length is
nothing inch(es). So, the shorter side of each rectangle is
nothing inch(es). If x represents the length of the longer side of each rectangle, the perimeter is
▼
4 x equals 7
2 x plus 2 left parenthesis 1 right parenthesis equals 7
2 x left parenthesis 1 right parenthesis equals 7
x squared plus left parenthesis 1 right parenthesis squared equals 7 squared
and x
nothing. The perimete
Answer:
7×2÷4 it's the number not letter
how does carbon moves through the system in the dark?
Answer:
Generally, about half of the caught carbon is released in respiration. ... When it is dark, the only flow of CO2 comes from respiration.
Explanation:
most genetic diseases tend to be recessive. why is that?
Fill in the blanks.
- Enzymes are _____ that _____ _____ chemical reactions.
- Each enzyme needs to be the ______ ______ to match the reaction it helps.
- _____ _____ _____ and _____ can denature, or change an enzymes shape.
- Wrong __= ____ = __ __ __ __
Answer: Enzymes are catalysts that speed up chemical reactions
The rest are up to your teacher I don’t know how they might have worded it
pH, heat, cold, salinity, radiation are all things that can denature an enzyme, and Im not quite sure what the last one might be
good luck man
Explanation:
11.A tomato plant has 12 chromosomes in each egg/sperm cell. How many chromosomes do each
of their somatic cells have?
Answer:
12 chromosomes
Explanation:
hope its attachments
Which statement describes an important role of carbon dioxide in Earth's atmosphere?
Animals breathe carbon dioxide.
O Plants use carbon dioxide to make food.
O Carbon dioxido helps animals make proteins.
Carbon dioxide forms clouds that produce rain
Answer:Plants use carbon dioxide to make food
Explanation: Carbon-dioxide plays a very important role in sustaining life on Earth.
Plants use carbon-dioxide and water for photosynthesis in presence of sunlight and chlorophyll to produce food and oxygen.
CO₂ + H₂O → O₂ + glucose (food)
This food is consumed by the animals and oxygen is used for respiration. Animals use energy from the food to do work and exhale back carbon-dioxide.
Question why won't answers open up where is the log in page
Answer:
Hmm I'm not sure I joined only a few days ago.
Explanation:
Which of these changes is a possible negative consequence of farmers
allowing livestock to overgraze a pasture?
O A. Desertification
O B. Shortage of freshwater
O c. Deforestation
O D. Abundance of clean air
Given what we know, one of the possible negative consequences of farmers allowing livestock to overgraze a pasture is desertification.
What is Desertification?In simple terms, desertification is when the land becomes so dry and void of life that it can be considered a desert. This can be caused by many factors, primarily the lack of vegetation.How can overgrazing lead to Desertification?Overgrazing can lead to desertification due to the fact that the plants and vegetation are not given the opportunity to regrow.The presence of vegetation allows the soil to remain moist and fertile by moving minerals and water through it. Overgrazing causes a lack of vegetation which creates dry and infertile land, which leads to complete desertification.Therefore, we can confirm that one of the possible negative consequences of farmers allowing livestock to overgraze a pasture is desertification due to the damage caused to the soil in the absence of vegetation.
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how are rat mice gerbils hamsters guinea pigs and chinchillas similar?
what is the cell wall function and factory part or worker?
Answer:
Major cell parts function just like the structures and people who work together in a factory. Cells have strong cell walls and a cytoskeleton to keep their shape; the walls are made of fiber for protection just like a factory building has sturdy walls for support.
The cell wall serves as a protective and structural layer surrounding plant, fungal, and bacterial cells. It provides rigidity, support, and defense against external pressures and pathogens.
In various species, the cell wall serves as a robust outer layer. Its primary component in plants is cellulose, which helps to preserve cell structure, limit excessive water absorption, and promote growth. Chitin is found in the cell wall of fungi, providing both structural integrity and protection.
Bacteria have a variety of cell wall compositions; peptidoglycan, for example, is an essential part of many bacterial cell walls. Along with other cellular components, this "factory-like" part of the cell performs its functions. It is comparable to a factory's base, supporting the cell's framework, and worker, guarding against threats and preserving the cell's overall operation.
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what veins return deoxygenated blood from the head and neck to the heart
Microevolution occurs when what kind of frequencies change?
which statement correctly compares a function of lipids to a function of proteins in the body?
The main role of nucleic acids is to store information that is used to make proteins. Nucleic acids come in two main forms: deoxyribonucleic acids, also known as DNA, and ribonucleic acids, also known as RNA. The main function of DNA is to store the genetic information that cells in the body need to function
how does carbon move through the system when there is light
Answer:
Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them.
Explanation:
The sun takes an integral role in the photosynthesis stage of the Carbon Cycle. Photosynthesis refers to the process by which plants take in carbon dioxide and water (the products of respiration), and convert it to oxygen, powered by the energy of the sun.
STUDY TIP 1
Don't do all your studying the night before. Instead spread it out, review class materials several times a week, and focus on one topic at a time.
FOLLOW FOR MORE
Answer:
That's cool, I think I'll try!
Explanation:
In what layer of the atmosphere is weather occuring and the layer where we live?
Answer:
Atmosphere takes place in the stratosphere and we live in troposphere