Which of the following is true of human development?
A) Most organs begin to form during the second trimester.
B) Gastrulation takes place in the oviducts.
C) Genetic diseases can be detected by sampling cells from the chorion.
D) Implantation occurs through interactions of the zona pellucida with the uterine lining.
E) Exposure to drugs and chemicals is most likely to cause birth defects when it occurs in the third trimester.
Correct Answer:
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Q1: The gray crescent is the region of
Q2: Which of the following is part of
Q3: Fertilization involves all of the following except
A)
Q5: The gray crescent
A) is observable in the
Q6: When is the developing human most susceptible
Q7: The earliest stage of development is called
Q8: Which of the following was a conclusion
Q9: In early cleavage, sea urchins undergo _
Q10: In organisms such as the chick, in
Q11: Which statement about gastrulation is true?
A) In
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