Multiple Choice
The ________ is formed by a portion of the allantois,blood vessels,and remnants of the yolk sac.
A) amnion
B) body stalk
C) chorion
D) umbilical cord
E) placenta
Correct Answer:

Verified
Correct Answer:
Verified
Q2: What is postnatal development?<br>A)Postnatal development refers to
Q3: When does the placenta become sufficiently functional
Q4: Compare strict dominance with codominance.<br>A)In strict dominance,one
Q5: The extra-embryonic membrane that forms the fetal
Q6: Identify the structure connecting the fetus to
Q7: Why are numerous sperm required to fertilize
Q8: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4853/.jpg" alt=" Figure 27-2 -Identify
Q9: A zygote whose genotype is XY will
Q10: Describe the trophoblast.<br>A)The trophoblast is the cell
Q11: Contact of a sperm with the oocyte