An organism's first line of defense against attack by an invader such as a virus or bacterium is usually Options: A . &nbspto flee or hide B . &nbspa nonspecific immune response C . &nbspa specific immune response D . &nbspits body wall

An organism's first line of defense against attack by an invader such as a virus

Question

An organism's first line of defense against attack by an invader such as a virus or bacterium is usually

Options:

A . to flee or hide

B . a nonspecific immune response

C . a specific immune response

D . its body wall

Answer: Option D

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