After 3 days,a pre-embryo becomes a solid ball of cells known as a
A) chorion.
B) blastomere.
C) lacuna.
D) morula.
E) blastocyst.
Correct Answer:
Verified
Q4: _ is the time spent in growing
Q5: Contact of a sperm with the oocyte
Q7: The individual cells produced by cleavage are
Q8: During amphimixis,
A)sperm become capacitated.
B)the zygote is formed
Q9: Completion of cytokinesis does not lead to
A)production
Q11: After fertilization,the first cell division is completed
A)within
Q21: A space opens within the inner cell
Q21: Under the influence of the trophoblast,maternal blood
Q22: The inner cell mass of the blastocyst
Q30: A blastocyst is a(n)
A) extraembryonic membrane.
B) solid
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