I believe the answer is <span>Eukaryote</span>
Answer:
astronomical unit, or A.U.
Explanation:
it is about 93 million miles or 150 million kilometers
Answer:
During presentation of APC-bound antigen, macrophages and dendritic cells secrete the cytokine, interleukin-1, that activates T helper cells
Explanation:
Macrophages interact with T cells in order to generate T cell activation in target organs, and are themselves activated by inflammatory messenger molecules (cytokines) produced by the T cells.
Macrophages produce toxic chemicals, such as nitric oxide, that can kill surrounding cells.
During presentation of APC-bound antigen, macrophages and dendritic cells secrete the cytokine, interleukin-1, that activates T helper cells
It's related because part of the survival of the fittest include the organism(s) to be able to survive in the environment they are in.
Hope this helps!! :-)<span />