In humans, implantation occurs:
A) just prior to fertilization.
B) immediately after fertilization.
C) when the embryo is a blastocyst.
D) when the embryo is a gastrula.
E) after the formation of the neural tube.
Correct Answer:
Verified
Q24: Based on experiments with amphibian embryos, Spemann
Q25: Induction refers to:
A)the pushing in of cells
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Q28: A human embryo is known as a
Q30: At what stage does a human embryo
Q31: Cells differentiate during development because:
A)each cell contains
Q32: The umbilical cord of a mammal connects
Q33: What makes the cells of a developing
Q34: At which stage is the human embryo
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