A blastomere is a _____ and a blastocyst is _____.
A) hollow ball of cells; a cell resulting from cleavage
B) fetal organ produced by cleavage; an embryonic organ produced by cleavage
C) fetal membrane; an embryonic membrane
D) cell produced by cleavage; a hollow ball of cells
E) solid ball of cells; three-layered embryo.
Correct Answer:
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Q48: The major body part(s)derived from ectoderm is/are
A)
Q49: Tanisha and Tawanda are twins but do
Q50: Latika and Jeremiah are thrilled at the
Q51: Teratogens are substances that
A) stimulate embryonic growth.
B)
Q52: The inner cell mass
A) helps form the
Q54: Two oocytes released from the same ovary
Q55: The allantois
A) destroys old blood cells.
B) gives
Q56: Body parts derived from endoderm include
A) epidermis
Q57: Blastocyst cells that give rise to the
Q58: The critical period is
A) the time during
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