Answer:
<em>Well, Cells of the immune system not only use lymphatic vessels to make their way and T cells mature in the thymus, they both initially develop from bone marrow. B cells are immune cells that function primarily by producing antibodies. structure on the surface of a pathogen that binds to T or B lymphocyte antigen receptors. Hope That Helps!</em>
<em>From Itsbrazts.</em>
I believe its true
hope this helped
Answer:
D. respiration
Explanation:
It is basically a process that takes place in the cells of organisms. It converts chemical energy from oxygen molecules or even nutrients into ATP.
Hope this helped!
According to simple diffusion. Molecules travel from high concentration to low. So it would be traveling into the cornea
Answer: unfavourable ph condition for the pepsin
Explanation: during digestion, enzymes are needed to aid the process.digestive enzymes are biological catalyst that breakdown large food particles into digestible form .
As biological catalyst, enzymes require an optimum temperature and pH condition.outside this temperature or pH,the enzyme is denatured.
In the stomach, hydrochloric acid is required to convert pepsinogen into it's active form,pepsin.the acid also creates an optimum low pH that pepsin needs to function.
As the food moves to the small intestine,the pH is alkaline and is unfavourable for pepsin to function.
