A tsunami is associated a lot. Hope that helped dude! ( Or girl.)
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.
C. Mutagens causes mutations.
The Earth is tilted at a 23.5° angle.
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