The placenta not only serves as an organ of exchange but also secretes all of the following hormones EXCEPT
a. prolactin
b. chorionic gonadotropin
c. placental lactogen
d. progesterone
e. estrogens
Answer: a. prolactin
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The smaller the receptive fields in a region,
a. the lower the density of receptors in the region b. the lower the acuity in the region c. the more likely of feeling two separate stimuli occurring close together on the skin d. all of the above will be true e. only a and b will be true
Arteries carry deoxygenated blood to the heart.?
Indicate whether the statement is true or false
During which phase of the cell cycle is the DNA duplicated?
A. Prophase B. Cytokinesis C. The G2 phase of interphase D. The G1 phase of interphase E. The S phase of interphase
Choose the statement that correctly categorizes cardiac muscle tissue.
A. The fibers lack I and A bands. B. Dense bodies anchor thin filaments. C. The fibers of cardiac muscle lack branches. D. The intercalated discs contain gap junctions.