Answer:
Symbionts means living together.
Explanation:
sym·bi·ont
noun
plural noun: symbionts
either of two organisms that live in symbiosis with one another.
Epithelial tissue mainly...but you can say statified epithelial tissue
The early immune response to HIV-1 infection is likely to be an important factor in determining the clinical course of disease. Recent data indicate that the HIV-1 quasispecies that arise following a mucosal infection are usually derived from a single transmitted virus. Moreover, the finding that the first effective immune responses drive the selection of virus escape mutations provides insight into the earliest immune responses against the transmitted virus and their contributions to the control of acute viraemia. Strong innate and adaptive immune responses occur subsequently but they are too late to eliminate the infection. In this Review, we discuss recent studies on the kinetics and quality of early immune responses to HIV-1 and their implications for developing a successful preventive HIV-1 vaccine.
Answer:
Absorb proteins that have been released through digestion
Sexual production requires the sperm and egg cell
