Variability in the levels of development of different parts of the organism at a given time is called:
A) heterochrony.
B) heterogeneity.
C) pluripotentiality.
D) totipotentiality.
Correct Answer:
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Q15: The prenatal period of development is important
Q16: Heterochrony refers to:
A) the developing organism's change
Q17: Approximately what percentage of pregnancies end before
Q18: During cleavage, cells do not all divide
Q19: The first week of prenatal development after
Q21: The first step of the process of
Q22: The _ period lasts for approximately 6
Q23: A cell's environment provides information that regulates
Q24: The umbilical cord:
A) connects the embryo or
Q25: Which of the following develop from the
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