Adaptive immunity is based upon the interactions between specific immune system cells and a specific antigen. This happens when cell surface of B cell binds to antigen thus lead to activating B cells. Hope this is the answer and this would help.
False. Intrinsic Factor is necessary for absorption of B12 from the intestine.
In the lyric cycle, the virus attaches to the host cell which then injects its DNA. By using the hosts cellular metabolism
It uses a little oxygen - it uses none
Answer:
They both had a tail as an embryo, and Their arm and leg structure is similar, but may have a different function.
