In humans, implantation occurs
A) when the embryo is a gastrula.
B) after the formation of the neural tube.
C) just prior to fertilization.
D) when the zygote is a blastocyst.
E) immediately after fertilization.
Correct Answer:
Verified
Q23: At what stage does a human embryo
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Q29: Induction refers to
A) the formation of the
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A) genes respond
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Q33: In humans, fertilization occurs in the
A) testes.
B)
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