Chapter 32 TestMultiple Choice Identify the choice that best
completes the statement or answers the question. ____ 1. What is
NOT a mammal? a. Bottlenose dolphin c. Hammerhead shark b. Manatee
d. Blue whale 2. Which of these mammals is a monotreme? a. kangaroo
c. opossum b. chimpanzee d. platypus 3. Most marsupials are found
in a. America. c. Antarctica. b. Africa. d. Australia. 4. The main
advantage of hair is that it a. can be shed. c. protects the skin.
b. conserves body heat. d. provides mucus. 5. A jaw that has small
incisors and canines but large premolars and molars may belong to a
a. wolf. c. dolphin. b. horse. d. beaver. 6. The folds in the
mammalian brain a. secrete necessary fluids. b. form ridges for
storing learned behavior. c. increase the brains surface area. d.
transfer heat from the body to the environment. 7. _______ are
examples of egg-laying mammals. a. Numbats and lemurs c. Anteaters
and shrews b. Platypusses and spiny anteaters d. Seals and whales
Matching Put the correct mammal classification with the correct
mammal. a. Placental b. Marsupial ____ ____ ____ ____ ____ ____
____ 8. 9. 10. 11. 12. 13. 14. Pig Possums Duck-billed platypus
Kangaroo Armadillo Echidna Koala Bear c. Monotreme
____
____
____
____
____
____
Completion Complete each statement. Write the word or phrase
that best completes each statement. Use these choices: cud chewing
diaphragm gestation gland mammary glands marsupial monotreme
placenta placental mammal therapsids uterus
15. A ____________________ is a mammal in which the young have a
second period of development inside a pouch made of skin and hair
found on the outside of the mothers body. 16. In most mammals,
nourishment of the young inside the uterus occurs through an organ
called the ____________________, which develops during pregnancy.
This organ is instrumental in passing oxygen to and removing wastes
from the developing embryo. 17. A ____________________ is a group
of cells that secretes substances needed by an animal for
temperature regulation, reproduction, or other life processes. 18.
A mammal that carries its young inside the uterus until birth is a
_________________________. 19. Scientists can trace the origins of
the first mammals back to ____________________, a group of
reptilian ancestors that had features of both reptiles and mammals.
20. The time during which young placental mammals develop inside
their mother is called ____________________. 21. The
____________________ is a hollow muscular organ in female mammals
in which the development of offspring takes place. 22. A
____________________ is the sheet of muscle located beneath the
lungs that is used to expand and contract the chest cavity of
mammals. 23. Female mammals have _________________________, which
secrete milk, enabling mammals to nourish their young until the
young are mature enough to find food. Essay 24. What is the
function of oil glands and scent glands? 25. What is the function
of the mammary glands? 26. How does the diaphragm aid a mammal in
taking in oxygen? 27. What reproductive strategies help mammals to
be successful? 28. List three features that characterize
mammals.
Chapter 32 Test Answer SectionMULTIPLE CHOICE 1. 2. 3. 4. 5. 6.
7. ANS: ANS: ANS: ANS: ANS: ANS: ANS: C D D B B C B PTS: PTS: PTS:
PTS: PTS: PTS: PTS: 1 1 1 1 1 1 1
MATCHING 8. 9. 10. 11. 12. 13. 14. ANS: ANS: ANS: ANS: ANS: ANS:
ANS: A B C B A C B PTS: PTS: PTS: PTS: PTS: PTS: PTS: 1 1 1 1 1 1
1
COMPLETION 15. ANS: marsupial PTS: 1 16. ANS: placenta PTS: 1
17. ANS: gland PTS: 1 18. ANS: placental mammal PTS: 1 19. ANS:
therapsids PTS: 1 20. ANS: gestation PTS: 1 21. ANS: uterus PTS: 1
22. ANS: diaphragm
PTS: 1 23. ANS: mammary glands PTS: 1 ESSAY 24. ANS: Oil glands
lubricate the mammals skin and hair. Scent glands enable certain
mammals to mark their territories. PTS: 1 25. ANS: The mammary
glands produce milk for offspring. PTS: 1 26. ANS: The diaphragm
expands and contracts the chest cavity, moving air into and out of
the lungs. PTS: 1 27. ANS: Mammals guard their young and teach them
how to survive. The females have mammary glands to nourish the
young until they are mature enough to digest and absorb nutrients
from solid food. PTS: 1 28. ANS: Answers may vary. Mammals have
hair, mammary glands, a diaphragm, and a four-chambered heart. PTS:
1
