Sperm cells contain _____ chromosomes, and egg cells contain _____ chromosomes.
A) 23; 23
B) 23; 46
C) 46; 23
D) 46; 46
Correct Answer:
Verified
Q12: For a male fetus, the father contributes
Q13: The embryonic stage of prenatal development begins
Q14: A _ is the basic unit of
Q15: Which statement about stage theories is FALSE?
A)
Q16: To her amazement, Nora learns that her
Q18: The _ stage of prenatal development is
Q19: It is during the _ stage of
Q20: Except for reproductive cells, every cell of
Q21: Which statement about motor development is FALSE?
A)
Q22: Infants often _ before they _.
A) sit
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