Chemically mediated immune reactions are produced by ________________ and cell-mediated immune reactions are produced by _________________
a. B-lymphocytes; T-lymphocytes
b. T-lymphocytes; B-lymphocytes
c. immunoglobulins; T-lymphocytes
d. B-lymphocytes; immunoglobulins
e. cytokines; immunoglobulins
Answer: a. B-lymphocytes; T-lymphocytes
Psychology
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Mother-son pairs tend to bicker more than mother-daughter pairs
Indicate whether this statement is true or false.
Psychology
Research on sex hormones suggests that ________
a. fluctuating levels of progesterone make women emotional before menstruation. b. the testes are the only site for the production of androgens. c. estrogen enhances learning and memory. d. estrogen and progesterone are produced only by females.
Psychology