__________ enable the immune system to have a rapid response when the foreign invader reappears

A) ?Antigens
B) ?Phagocytes
C) ?Memory lymphocytes
D) ?Leukocytes

C

Psychology

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Which of the following is an example of a cohort effect?

a. Hurricane Katrina c. the invention of DVDs b. a war-torn country d. the financial crisis of 2008

Psychology

Which student is most at risk for school dropout?

A. Shelly, who has few friends and who is bullied B. Omar, who has parents who punish him for bad grades C. Tanis, who likes to skip classes D. Jeremy, who uses marijuana every day

Psychology