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Lesson Worksheet: Embryo Development and Pregnancy
Science
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In this worksheet, we will practice describing the formation of an embryo, and outlining the major developmental stages that occur during a pregnancy.
Q1:
Which of the following correctly outlines the process of development from fertilization to the end of a pregnancy?
AZygote ⟶ fetus ⟶ embryo ⟶ baby
BEmbryo ⟶ fetus ⟶ zygote ⟶ baby
CZygote ⟶ embryo ⟶ fetus ⟶ baby
DFetus ⟶ zygote ⟶ embryo ⟶ baby
EEmbryo ⟶ zygote ⟶ fetus ⟶ baby
Q2:
What term is given to the period of time between fertilization and birth in mammals?
AEmbryogenesis
BGestation
CIncubation
DConjugation
EDifferentiation
Q3:
Which of the following timelines correctly shows the major events that occur in the development of a fetus?
A
B
C
D
Q4:
In which part of the female reproductive system does most embryo development occur?
AStomach
BOvary
CUterus
DTestes
ECervix
Q5:
Which of the following statements is true about the blood flow of the mother and fetus?
AThe blood of the mother is directly transported into the fetus via the umbilical cord.
BThe blood of the mother and that of the fetus both pass through the placenta but do not directly mix.
Q6:
In humans, the gestation period typically lasts around 9 months. What term is given to this period of time?
AIncubation
BPregnancy
CMaturation
DAdolescence
EEmbryogenesis
Q7:
The diagram shows the major structures in the female reproductive system that aid the development of a fetus. What is the role of the umbilical cord?
ATo act as a store of sugars and other essential nutrients
BTo connect the fetus to the stomach of the mother
CTo connect the fetus to the placenta
DTo act as an air tube and allow the fetus to breathe
Q8:
The diagram shows the major structures in the female reproductive system that aid the development of a fetus. What is the role of the placenta?
ATo transmit electrical impulses from the mother to the baby
BTo provide a cushioning support and absorb any shocks
CTo allow the safe transport of substances between the blood and the fetus
DTo act as a store of sugars and other essential nutrients
This lesson includes 1 additional question for subscribers.
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