The purpose of MHC molecules is to bind and display pathogen-derived peptide fragments on the cell surface so that the relevant T lymphocytes can recognise them.
<h3>What are MHC proteins, or major histocompatibility complex proteins?</h3>
MHC, or the major histocompatibility complex, is a set of genes that produce proteins located on the cell surfaces and that aid the immune system in identifying foreign objects. In all higher vertebrates, MHC proteins are present. The complex in humans is also known as the HLA (human leukocyte antigen) system.
<h3>What exactly are MHC proteins, and why are they crucial?</h3>
The major histocompatibility complex (MHC) is a collection of genes that code for cell surface proteins that play a significant part in the immune response. MHC molecules have a major role in how they display antigens.
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Answer:
NO
Explanation:
Areas near the equator receive more direct solar radiation than areas near the poles. However, these areas do not constantly get warmer and warmer, because the ocean currents and winds transport the heat from the lower latitudes near the equator to higher latitudes near the poles
Food is the source of energy that is used by the organism for the process of metabolism. Maggots are the larva of flies and depend on dead and decaying matters.
Maggots are:
Option C. Decomposers
This type of organism can be explained as:
- The organism is classified into different classes according to the nature of its feeding habits.
- <u>Autotrophs </u>are called the primary producer and break inorganic compounds into organic for energy.
- <u>Producers </u>are the organism that produces their food by converting solar energy into chemical energy.
- <u>Decomposers </u>are small-sized organism that lives in soil and breaks the organic compound of dead and decayed bodies.
- <u>Heterotrophs </u>are organism that depends on other sources and producers for energy.
Therefore, maggots are decomposers.
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Answer: Option A.
It works by stopping ovulation and thickening the cervical mucus.
Explanation:
Depo provera (medroxyprogesterone acetate) is a contraceptive injection that contain the hormones progestin which is used as a birth control. It stops the woman from getting pregnant by stopping ovulation and causing thickening of cervical mucus. It is an injection given every three months, it is safe and convinient for birth control.
It has some disadvantages and these include, it can cause irregular periods, it does not prevent against sexually transmitted disease, it should be stop several months before you can get pregnant e.t.c.
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