Sophia - Human Biology - Unit 5 Challenge
3.
1 — Fertilization and Early Development
Understand the process of fertilization and the earliest human developments.
What body part develops from the ectoderm?
a.) Bladder
b.) Muscle
c.) Pituitary gland
d.) Heart
2 — Implantation
Determine the process of implantation.
Which of the following statements about ectopic pregnancy is true?
a.) Menstruation occurs and the fertilized egg is expelled from the uterus.
b.) The fertilized egg fuses with the ovary from which it was released.
c.) The fertilized egg attaches to the endometrium in the uterus.
d.) The fertilized egg implants somewhere other than the endometrium.
3 — Placenta
Identify characteristics of the placenta and other structures associated with the baby's
nourishment.
Which of the following is a sac-like structure that gives rise to umbilical blood
vessels?
a.) Placenta
b.) Allantois
c.) Yolk sac
d.) Amnion
4 — Embryonic and Fetal Development
Determine the stages of development of an embryo during pregnancy.
If a woman is just beginning to feel the movements of her developing fetus, how
many months has she most likely been pregnant?
a.) Three months
b.) Two months
c.) Four months
3.
1 — Fertilization and Early Development
Understand the process of fertilization and the earliest human developments.
What body part develops from the ectoderm?
a.) Bladder
b.) Muscle
c.) Pituitary gland
d.) Heart
2 — Implantation
Determine the process of implantation.
Which of the following statements about ectopic pregnancy is true?
a.) Menstruation occurs and the fertilized egg is expelled from the uterus.
b.) The fertilized egg fuses with the ovary from which it was released.
c.) The fertilized egg attaches to the endometrium in the uterus.
d.) The fertilized egg implants somewhere other than the endometrium.
3 — Placenta
Identify characteristics of the placenta and other structures associated with the baby's
nourishment.
Which of the following is a sac-like structure that gives rise to umbilical blood
vessels?
a.) Placenta
b.) Allantois
c.) Yolk sac
d.) Amnion
4 — Embryonic and Fetal Development
Determine the stages of development of an embryo during pregnancy.
If a woman is just beginning to feel the movements of her developing fetus, how
many months has she most likely been pregnant?
a.) Three months
b.) Two months
c.) Four months
