What would happen if the trophoblast did not secrete hCG upon implantation of the blastocyst? a. The cells would not continue to divide. b. The corpus luteum would continue to produce progesterone and estrogen. c. Menses would flush the blastocyst out of the uterus. d. The uterine mucosa would not envelop the blastocyst.

Concepts of Biology
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Chapter18: Animal Reproduction And Development
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Problem 11RQ: Nutrient and waste requirements for the developing fetus are handled during the first few weeks by...
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What would happen if the trophoblast did not secrete
hCG upon implantation of the blastocyst?
a. The cells would not continue to divide.
b. The corpus luteum would continue to produce
progesterone and estrogen.
c. Menses would flush the blastocyst out of the
uterus.
d. The uterine mucosa would not envelop the
blastocyst.

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