D. All of the above
(I mostly believe this is the correct answer.)
I believe your answer is going to be Culture.
Hope this helps
~Onyx~
Answer:
option B
Explanation:
see, as much I know, apart from the seperate functions of both B cells and T cells in our immune system, T cells help out B cells in antibodies production. And those T cells are Helper T cells.
keep your promise please... it would be my first brainly!
Answer:
lateral side of the forearm
Explanation: