Answer:
it's a structure of distinctive morphology and function, includes nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes, and the cytoskeleton
Answer:
Because T-cell-independent antigens do not activate helper T cells, they fail to induce B cell memory, affinity maturation, or class switching, all of which require help from T cells. They therefore mainly stimulate the production of low-affinity (but high-avidity) IgM antibodies.
Explanation:
