Focus On Life Science: California Grade 7

Lesson 2: Development Before Birth

Standards Check

1.
Which of these should be avoided during pregnancy? 5.e
A)folic acid
B)caffeine
C)milk
D)protein
2.
Which of these occurs only during the third trimester of a pregnancy? 5.e
A)the heart beats
B)structures for major organs are present
C)the fetus triples in size
D)kicking movements
3.
Premature babies have difficulty surviving because their ______ are not fully develop 5.e
A)brain
B)heart
C)kidney
D)lungs
4.
To increase the chances of a healthy baby, a pregnant mother should do which of the following? 5.e
A)drink alcohol
B)have prenatal care
C)smoke
D)use pesticides
5.
Pregnancy lasts about ____ weeks from fertilization. 5.e
A)12
B)38
C)24
D)36
6.
Which term is given to an embryo after the first two months of pregnancy? 5.e
A)fetus
B)placenta
C)zygote
D)child
7.
The cell that is formed when fertilization occurs is called __________. 5.e
A)a cytoplasm
B)a mutation
C)a ladder
D)a zygote
8.
__________ carries nutrients and oxygen to the developing embryo from its mother. 5.e
A)The negative-feedback system
B)The endocrine glands
C)The umbilical cord
D)The menstrual cycle
9.
The embryo is connected to the placenta through this. 5.e
A)the cervix
B)the navel
C)the ovary
D)the semen
Grade 7
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