PLEASE HELP!!!! WILL GIVE BRAINELIST
Please summarize to answer, how do cells undergo differentiation to form the numerous types of cells in the body?
Cellular differentiation, or simply cell differentiation, is the process through which a cell undergoes changes in gene expression to become a more specific type of cell. The process of cell differentiation allows multi-cellular organisms to create uniquely functional cell trt42ypes and body plans. The process of cell differentiation is driven by genetics, and their interaction with the environment.
All organisms begin from a single cell. This single cell carries the DNA coding for all the proteins the adult organism will use. However, if this cell expressed all of these proteins at once it would not be functional. This cell must divide repeatedly, and the cells must begin the process of cell differentiation as they divide. The cell lines begin to emerge, and the cells get more and more specific. Eventually, an entire organism is formed with hundreds of different cell types from this process of cell differentiation.
The original mass of cells, which have not undergone differentiation, are known as stem cells. Unlike normal cell division, which creates two identical daughter cells, the division of stem cells is asymmetric cell division. In this case, one of the cells remains identical to the parent stem cell. In the other cell, chemical triggers activate the process of cell differentiation, and the cell will start to express the DNA of a specific cell type. Stem cells which can differentiate into entire organisms are known as embryonic stem cells and are said to be totipotent.
By contrast, the body also has many cells which are only pluripotent. These cells have already undergone some cell differentiation. These stem cells can only divide into a narrow range of cell types. Bone marrow, for instance, contains somatic stem cells which can only become red blood cells. These cells are necessary for the constant replenishment of blood cells, which are mostly inactive besides their oxygen-carrying ability.
Cell Differentiation Examples
In Animals
After the process of fertilization in animals, a single-celled organism called the zygote is formed. The zygote is totipotent, and will eventually become an entire organism. Even the largest animal on Earth, the blue whale, starts as a single cell. The complex tissues and organ systems, which are completely different in their form and function, all come from the zygote. The process of cell differentiation starts early within the organism. By the time the gastrula has formed, the cells have already started expressing various portions of the DNA.
These changes drive the first folding processes within the embryo. As the tissues continue to form, some cells begin releasing hormones, or chemical triggers which signal various cells to react. Hormone signals direct the expression of DNA in various body parts, which drives their cell differentiation further. In humans it only takes a little over a month for a rudimentary heart and circulatory system to form.
As the systems continue to form, many of the stem cells lose their totipotency, themselves undergoing cell differentiation. This allows for faster production of specialized cells, which the growing organism needs to sustain its growth and enter the world with success. Through cell differentiation, tissues as different as brain tissue and muscle are formed from the same single cell.

Answer:

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9. If you conducted the analysis portion of Experiment 2, you calculated
the rate at which the percentage of fish with a complete pelvis
decreased in that ancient lake. Do you think the same rate of change
would apply to modern fish populations?
A. Probably not, since the environment has changed so much in the 10
million years since that ancient lake existed.
B. Although we did not measure this directly, it is possible that the same
rate of change observed in the fossil record applies to modern
populations.
C. The fossil record analyzed in Experiment 2 only spans 15,000 years,
so we cannot draw any conclusions to modern populations, which
evolved over a much longer period of time, at least 10,000 years.
D. The rate of evolution of a particular phenotype cannot be calculated
from the fossil record because the fossil record is always fragmentary.

ANSWER PLEASE !!

When is carbon NOT released back into the atmosphere?
A. when organisms die
B. when sunlight is absorbed in chlorophyll
C. volcanoes erupt
D. fossil fuels are burned

Do sex-linked traits that originate from mutated genes found on X chromosome affect one sex more than the other? why/why not

What is the dry bulb temperature

Which species has the most chromosomes?
A.
cats
B.
dogs
C.
crayfish
D.
humans

why did people disagree with carbon taxing ?

21. In 1960, an invasive species of fish was introduced into the stable ecosystem of a river.
Since then, the population of a native fish species has declined. This situation is an example of
an
1) Ecosystem that has recovered
2) Ecosystem altered through the activities of humans.
3) Environmental impact caused by physical factors
4) Ecological niche without competition

How can topsoll be replaced in an area that has been strip-mined?
O A) Vegetation will quickly form topsoil.
OB) Stockpile topsoil from the area before strip mining.
O C) Use mine waste for topsoil.
O D) Use crushed rock from the mine.

Help lol!!!!!!!!!!!!

During a baseball game, a hitter strikes the ball with a bat. When this happens, the ball and the bat exert a
force on each other. Why does the ball accelerate away from the bat more than the bat accelerates away from
the ball?

can anyone help me? I’m stuck

Which of the following identifies types of plants in which pollination occurs?

what animal is the descendant of Gilmoreosaurus


please help me

Which population eats kelp the most?

Which factor does NOT provide evidence of common ancestry?

a.) DNA

b.) organism size

c.) stages of early development

d.) homologous structures

Most of the stars on the HR diagram are classified as which type of star?

What do checkpoints do in the cell cycle?

Si contamos con mas tecnologia ahora,por que creen que no es posible regresar de Marte si lo es regresar de la Luna

CRITICAL THINKING 1. Name three things you could do each day to pro- duce less waste. 2. Explain how buying certain products can help reduce solid waste. 5. Analyzing Methods What are the advantages and disadvantages to producing degradable plastics? 6. Demonstrating Reasoned Judgement Read the Case Study in this section and decide which type of bag you would choose the next time you go shop- ping. Explain why you made this choice. What are other uses of the bag you chose? READING SKILLS 3. Describe the steps it takes to recycle a piece of plastic 4. List two benefits of composting.
​

Use the following information to answer the questions below. Skin color in a certain species of fish is inherited via a single gene with four different alleles. One fish of this type has alleles 1 and 3 (S1S3) and its mate has alleles 2 and 4 (S2S4). If each allele confers a unit of color darkness such that S1 has one unit, S2 has two units, and so on, then what proportion of their offspring would be expected to have five units of color

Who was Louis Pasteur?

Choose the BEST EVIDENCE to support the CLAIM: Crater lake was formed when a volcanic cone collapsed and filled with water.

Can you find out what the oldest evidence of multi-celled life is? Tell me about it.

the four most common chemical elements found in living matter are
1,C,H,O,P
2,C,H,O,N
3,C,H,N,P
4,C,H,O,S
5,C,H,O,Ca​

somebody pls help me

Organ transplantation, stem cell research, and cloning, are all examples of biotechnology.
O False
O True

The main adaptation that plants had to develop to live on land instead of
water was the ability to --

1. disperse seeds
2. produce fruit
3. photosynthesize
4. conserve water

(will give brainliest for correct answer. )

The sugar molecule that stores the energy is called what?A.Cellular RespirationB.Carbon DioxideC.PhotosynthesisD.Glucose

According to Friedman and Roenman, high levels of stress are linked to __________.
cancer

Alzheimer's disease

emphysema

coronary disease

I am confused, could you please help. I’d appreciate it.