So its acquired immunity and the cells responsible are the B lymphocytes that produces antibodies against the virus. Memory is keep since first encounter of the virus by the immune system by way of the antibodies that was initially produced. The antibodies are there already, which makes it fast to act upon when expose again.
the answer to question 10 is be in great health condition
Answer:
Early humans that likely evolved from Cro-Magnons - <u>Homo</u><u> </u><u>sapiens</u><u>.</u>
Discipline and a good attitude.
Um, I'd say intensity. Wish there was a perseverance or diligence.
