Final answer:
Cytokines are essential chemical messengers in the immune system, regulating immune responses through their pleiotropic and multifunctional nature.
Explanation:
Cytokines are low molecular weight, soluble proteins that act as chemical messengers in regulating the immune system. They are pleiotropic, redundant, and multifunctional, interacting with various cell types to produce immune responses.
Learn more about Cytokines and immune system communication here:
https://brainly.com/question/29729664
