Multiple Choice
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
Correct Answer:
Verified
Correct Answer:
Verified
Q37: The postnatal period extends from<br>A)the fertilized egg
Q38: After birth, the foramen ovale is closed
Q39: Proteolytic enzymes from the trophoblast aid implantation
Q40: Fetal hemoglobin becomes largely replaced with adult
Q41: Upon examination of a zygote, a developmental
Q43: Jeremy cannot ejaculate because of an injury
Q44: The umbilical cord contains two umbilical veins.
Q45: The pharmaceutical drug RU-486, typically used to
Q46: A major body part derived from endoderm
Q47: The fertilized ovum is also called a(n)_.