When a sperm fertilizes an egg the resulting cell is called:
A) a morula.
B) a blastocyst.
C) an implantation.
D) a zygote.
Correct Answer:
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Q2: In this diagram, what is labeled B?
Q3: In this diagram, what is the structure
Q4: Some of the mesoderm is destined to
Q5: Which statement is true regarding the yolk
Q6: What is the embryo also called at
Q7: Sperm must penetrate the _, the outer
Q8: In this diagram, what is labeled A?
Q9: How many days old is this embryo?
Q10: The epidermis, nervous system, and adrenal medulla
Q11: The embryonic period lasts from fertilization through
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