The secondary immune response occurs when memory cells are activated by a second exposure to
A) hormones.
B) antibodies.
C) antigens.
D) macrophages.
Answer: C
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Exoskeletons are used for movement by which of the following animals?
A. insects B. cnidarians C. crustaceans D. humans E. insects and crustaceans
The process illustrated in Figure 3-1 is called:a
condensation. b. protein synthesis. c. hydrolysis. d. dehydration synthesis. e. denaturation
The inferior vena cava transports blood to the left atrium
____________________ Indicate whether the statement is true or false.
All of the following are appropriate strategies for overcoming drug resistance in bacteria except ________.
A. prudent use of antibiotics when treating viral infections B. patient compliance with dosage instructions when taking antibiotics C. decreasing the use of antibiotics in agriculture D. heightened infection control in health care facilities