By 72 hours after fertilization,the egg has divided into more than 160 cells and is called the morula.
Correct Answer:
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Q18: Match the following:
-Forms the mother's part of
Q19: Match the following:
-A solid sphere of undifferentiated
Q20: Q21: The period from fertilization through week eight Q22: A pregnant woman urinates more often than Q24: The placenta and its attached fetal membranes Q25: The embryo is directly enclosed in and Q26: In fetal circulation,one way in which blood Q27: A blastocyst is a hollow ball of Q28: A zygote is usually formed within the
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