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MAXImum [283]
3 years ago
8

How does the immune system recognize its own body’s cells?

Biology
1 answer:
soldi70 [24.7K]3 years ago
7 0
<span> </span>Most cells of the body have self markers on the surface of their cell called the major histocompatibility complex (MHC). The MHC allows cells of the immune system to recognize the cell as part of our self.<span>system to recognize the cell as part of ourself.</span>
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The theory of evolution by Charles Darwin was sparked by his travels in South America especially but also was supported by his o
Alina [70]

Answer:

Evolution refers to the change in the structure of an organism with the passage of million of years.

Explanation:

Evolution is the change in the structure of an organism with the passage of million of years. Evolution occurs due to two reasons, first from genetically while the other from adaptation to the environmental conditions. In genetically, the change in structure of animal comes from their parents whereas changes occurs due to adaptation of an organism in order to survive in the harsh climatic condition of the environment.

7 0
3 years ago
Virtually all cells in the human body have the same DNA. What’s make some undifferentiated cells differentiated into brain cells
mariarad [96]

Answer:

Changes in gene expression

Explanation:

This phenomenon is the result of changes in gene expression. That means, how the information in the DNA is used by the cell. The genes that are active in the cells of the brain will be very different from the genes that are active in the cells of the bone marrow.

These patterns of gene expression are different for each cell, and dictate the identity of that cell. Gene expression patterns are controlled by a variety of factors in the cell that allow tissue-specific expression, such a transcription factors.

This can also be facilitated by another layer of regulation called epigenetics, which literally means "on top of" genetics, and refers to modifications of DNA (and the proteins around it), that can reflect and influence the activity of the genes within.

8 0
3 years ago
The photo shows a boy and his parents.
stellarik [79]

Answer:

B

Explanation:

You can't change your DNA as far as I know and if you inherit exact copies of DNA from your parents that means you're a clone which human clones don't exist. You inherit genes from both your mother and father i.e you have blue eyes like your dad and brown hair like your mom.

5 0
3 years ago
Which is true of the thylakoids? have a small surface area hold a small number of electron-transporting molecules are surrounded
Maslowich
The thylakoids contain two photosystems. They are the site of light-dependent reactions and are a <span>membrane-bound compartment inside chloroplasts and cyanobacteria.</span>
4 0
4 years ago
Which of the following lower limb muscles plays an important role in maintaining posture?
Alona [7]
I believe the correct answer would be C. Sartorius   i believe this is the answer, after doing some research on gO0gLe.

6 0
3 years ago
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