Answer:
C
Explanation:
The major histocompatibility complex (MHC) is a group of genes whose function is to codify proteins that participate in the immune response, helping the system to <u>recognize foreign substances to develop an immune response</u>.
<u>Histocompatibility or compatibility of tissue </u>is given by self-identifications molecules (antigens) located on the surface of cells, membrane, these molecules are almost <u>unique to each person</u>, letting the body to distinguish self from non-self.
Answer:
Arteries carry blood away from the heart
Explanation:
Veins carry the blood back to the heart.
Hope this helps!
I'm pretty sure your talking about Vertebrates
This question is quite difficult
Answer: The answer is B.
They can be any class of sugar glucose etc.
