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:
Parathyroid hormone
Explanation:
This is one of the most essential hormones in your entire body.
The first graph is correct. The population rises above then below the carrying capacity repeatedly. When the population rises above the carrying capacity, the population can no longer be supported and so it will decrease. When the population decreases below the carrying capacity, there will be more available resources so the population can grow.
Answer is C transitional fault
Answer:
eukaryotes and prokaryotes
Explanation:
both are organisms that are comparable
