Multiple Choice
Identical twins occur when ________.
A) two eggs are released and are fertilized by two different sperm
B) two eggs are released and are fertilized by the same sperm
C) one egg is released and is fertilized by one sperm, and the pre-embryo later splits into two
D) one egg is released and is fertilized by one sperm, and the fetus later splits into two
Correct Answer:
Verified
Correct Answer:
Verified
Q7: Developmental problems present at birth are known
Q8: Sometimes, splitting of the pre-embryo is incomplete
Q9: Which of the following is the correct
Q10: A(n) _ occurs when the blastocyst implants
Q11: Which is the temporary blood vessel that
Q13: Compare and contrast breast-feeding with bottle-feeding.
Q14: The _ is an extraembryonic membrane that
Q15: When your mother is mad at you,
Q16: Match each definition to the correct term
Q17: What physiological processes are involved in lactation?