Answer:
It won’t let me download the picture
Explanation:
Answer:
True
Explanation:
There are several types of cytokines used in cell signaling; interferons, interleukins, tumor necrotic factor, and chemokines. T helper cells mainly produce interleukins. When activated by Antigen-Presenting-cells, t-helper cells produce interleukins that activate B cells and is significant in their proliferation during an infection.
answer: You inherit a copy from one parent, and the other copy from the other parent.
Answer:
B- Energy and nutrients cycle through an ecosystem.
Explanation: