Chapter 32:
Mammals
Practice Test
1.
Therapsids had lower jaw and ear bones like those of __________.
a.
reptiles
b.
birds
c.
mammals
d.
amphibians
Hint
2.
Mammals cool off by panting and by means of __________.
a.
sweat glands
b.
mammary glands
c.
thyroid glands
d.
diaphragms
Hint
3.
Scientists place mammals into one of three subclasses based on their method of __________.
a.
breathing
b.
reproduction
c.
caring for young
d.
feeding
Hint
4.
Mammals have different kinds of teeth adapted to the type of __________.
a.
food eaten
b.
locomotion the animal has
c.
maternal care given
d.
protection needed
Hint
5.
The Cenozoic era is called the golden age of __________.
a.
fishes
b.
mammals
c.
dinosaurs
d.
amphibians
Hint
6.
The reason that most marsupials are found in Australia today is because of __________.
a.
continental drift
b.
glaciation
c.
volcanism
d.
extinction of dinosaurs
Hint
7.
Mammals can live in every environment on Earth because they are
a.
predators
b.
endotherms
c.
monotremes
d.
ecotherms
Hint
8.
The organ(s) that helped mammals become successful in protecting developing young from predators was/were __________.
a.
legs
b.
claws
c.
the uterus
d.
teeth
Hint
9.
Mammals have a higher rate of metabolism necessary for regulation of __________.
a.
heart rate
b.
breathing
c.
locomotion
d.
body temperature
Hint
10.
The diaphragm allows the chest cavity to __________.
a.
receive oxygen
b.
pump blood
c.
cool down
d.
expand and contract
Hint
11.
Therapsids had legs that were most like those of __________.
a.
reptiles
b.
amphibians
c.
birds
d.
mammals
Hint
12.
When the dinosaurs disappeared, the niches that opened up were filled by __________.
a.
amphibians
b.
birds
c.
lizards
d.
mammals
Hint
13.
The mammalian brain is folded and has ridges and grooves, giving it __________.
a.
memory
b.
more nerves
c.
a large surface area
d.
a high metabolism
Hint
14.
Mammals that have more than one stomach are __________.
a.
insectivores
b.
marine animals
c.
rodents
d.
hoofed animals
Hint
15.
A mammal that carries its young inside the uterus until development is almost complete is a __________.
a.
marsupial
b.
placental
c.
bat
d.
monotreme
Hint
