Judy runs 50 miles a week. She and her husband have been trying to conceive for three
years, with no luck. Her disturbed reproductive cycles and infertility are due to
A) increased synthesis of estrogens.
B) decreased secretion of adrenal androgens.
C) increased secretion of adrenal androgens.
D) decreased synthesis of estrogens.
D
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Nucleotides from RNA
A) are deaminated to form ammonia. B) can provide sugars for glycolysis, in order to form ATP. C) can be used to synthesize proteins. D) cannot be used as a source of energy in place of ATP. E) cannot be recycled.
Fast-oxidative muscle fibers have a high concentration of mitochondria
Indicate whether the statement is true or false
The interosseous membrane between the radius and the ulna is an example of a
A. syndesmosis. B. synostosis. C. synarthrosis. D. suture. E. synchondrosis.
Two atoms that differ only in the number of neutrons they contain are known as
A. isotopes. B. isomers. C. ions. D. anions.