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.
Answer:
B.) modeling of how to use materials or toys
Explanation:
Toys are meant to be used for the child's imagination. If the child feels forced into using something in only one particular way, this can trigger a breakdown.
Answer:
be undecided about wanting to quit
Explanation:
