Memory cells that form during a primary immune response circulate in the blood for

a. several days.
b. weeks.
c. months.
d. many years.
e. a few minutes.


D

Biology & Microbiology

You might also like to view...

What evidence do we have that the orbits of the asteroids are modified by the gravitational influences of the planets?

What will be an ideal response?

Biology & Microbiology

The amount of time the cell takes for interphase is approximately 1 hour, plus or minus about 5 minutes.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The steady charge difference across the plasma membrane is called the

a. action potential. b. energy potential. c. electrolyte potential. d. resting membrane potential. e. kinetic potential.

Biology & Microbiology

What reward do many organisms receive for pollinating flowers?

A) protection from predators B) no reward C) nectar D) fruit

Biology & Microbiology