All of the following are true of a zygote EXCEPT ________
A) it is a hollow ball with an inner mass of cells and an outer layer
B) it is the union of an ovum and a spermatozoon
C) it contains 46 chromosomes
D) pregnancy begins after the zygote begins to divide
D
Explanation: A) This is a true statement.
B) This is a true statement.
C) This is a true statement.
D) Correct! Pregnancy begins at the moment the ovum and spermatozoon unite.
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