Which of the following glands provides nourishment for sperm, as well as the majority of the fluid that combines with sperm to form semen?
A) seminal vesicles
B) prostate gland
C) bulbourethral glands
D) Cowper's gland
Answer: A) seminal vesicles
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Which ion channel opens in response to a change in membrane potential and participates in the generation and conduction of action potentials?
A) mechanically gated channel B) voltage-gated channel C) leakage channel D) ligand-gated channel
Each amino acid differs from others in the
A) chemical structure of the R group. B) size of the amino group. C) number of carboxyl groups. D) number of central carbon atoms. E) number of peptide bonds in the molecule.
What are the two forms of short-term memory?
a. primary and secondary b. habituation and sensitization c. retrograde and anterograde d. major and minor e. cortical and subcortical
Most chemical digestion of food occurs in the
A. large intestine. B. small intestine. C. stomach. D. mouth.