Active immunity requires
A. the transfer of antibodies from another individual.
B. that all immune responses to the pathogen result in symptoms of illness.
C. that an active virus be used in a vaccine.
D. direct encounter with the antigen.
Answer: D
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Which of the following structures reabsorbs the most glomerular filtrate?
A. Glomerulus B. Distal convoluted tubule C. Proximal convoluted tubule D. Collecting duct E. Nephron loop
Vasoconstriction:
A. decreases peripheral resistance B. increases arterial blood pressure C. is caused by relaxation of smooth muscle in the blood vessel walls D. decreases cardiac output
Which of the following is attached to the medial side of the tympanic membrane?
A. Malleus B. Stapedius C. Tensor tympani D. Stapes E. Incus
The limbic system involves various neural connections between
A. the medulla and pons. B. the pons and cerebellum. C. the cerebrum and diencephalon. D. the diencephalon and midbrain. E. the cerebrum and midbrain.