Chapter 10:
Animal Growth and Development
Practice Test
1.
What is the union of two gametes in sexual reproduction?
a.
fertilization
b.
differentiation
c.
activation
d.
cleavage
Hint
2.
Which cell layer of the gastrula differentiates into the skeleton, muscles, and internal organs?
a.
dermis
b.
mesoderm
c.
ectoderm
d.
endoderm
Hint
3.
What is development in which the body is divided into a number of similar sections?
a.
segmentation
b.
differentiation
c.
morphogenesis
d.
metamorphosis
Hint
4.
What is the process in early animal development in which cells divide rapidly without growth?
a.
morphogenesis
b.
differentiation
c.
cleavage
d.
segmentation
Hint
5.
What is an eight-week-old human embryo called?
a.
larva
b.
fetus
c.
baby
d.
blastocyst
Hint
6.
What function do tough, thin, flat skin cells have?
a.
digest food to provide nutrients to the body
b.
transmit information to other parts of the body
c.
protect the body
d.
move the body
Hint
7.
Which cell layer of the gastrula differentiates into the lining of the digestive tract?
a.
dermis
b.
endoderm
c.
ectoderm
d.
mesoderm
Hint
8.
What is the process in which one embryonic tissue influences another, causing the second tissue to specialize?
a.
metamorphosis
b.
embryonic induction
c.
segmentation
d.
morphogenesis
Hint
9.
What form does the blastula of a sea star take?
a.
a hollow ball of cells
b.
a solid ball of cells
c.
a small sphere on the surface of the egg yolk
d.
a thin, hollow disk on the surface of the egg yolk
Hint
10.
Which of these is NOT one of the primary germ layers in a gastrula?
a.
mesoderm
b.
ectoderm
c.
endoderm
d.
epidermis
Hint
