Question 1

Which of the following species are born altricial?&#10;A)Ferrets&#10;B)Degus&#10;C)Chinchillas&#10;D)Guinea pigs

Accepted Answer

C

Question 2

Which of the following animals is an example of a marsupial commonly kept as a pet?&#10;A)Degu&#10;B)Hedgehog&#10;C)Sugar glider&#10;D)Echidna

Accepted Answer

Sugar gliders are a popular marsupial kept as pets due to their small size, cute appearance, and sociable nature. Degus, hedgehogs, and echidnas are not marsupials.

Question 3

Which of the following terms means marsupial?&#10;A)Monotreme&#10;B)Endoderm&#10;C)Metatheria&#10;D)Eutherian

Accepted Answer

B

Question 4

Eutherians are mammals with a _____.&#10;A)pouch&#10;B)placenta&#10;C)dewclaw&#10;D)urethral cone

Accepted Answer

Eutherians have a placenta, which is a specialized organ that allows for nutrient and gas exchange between the mother and the developing fetus. This is a distinguishing feature of eutherian mammals, as opposed to marsupials (which have a pouch) or monotremes (which lay eggs). Dewclaws are additional digits on the feet of some mammals, and urethral cones are found in male felids but are not a defining characteristic of eutherians.

Question 5

Mammals have a _____, a strong muscle that assists in respiration.&#10;A)diaphragm&#10;B)cloaca&#10;C)choana&#10;D)mandible

Accepted Answer

The diaphragm is the strong muscle that assists in respiration. The cloaca is a common opening for digestive, urinary, and reproductive systems found in some animals. The choana is a nasal passage in some animals. The mandible is a jawbone found in animals.

Question 6

The young of marsupials are born _____.&#10;A)fully developed&#10;B)with one opening for excretion and reproduction&#10;C)with only one set of teeth&#10;D)in an embryonic state

Accepted Answer

Marsupial young are born in a very undeveloped, embryonic state and typically complete their development in the mother's pouch.

Question 7

Young that are born precocial will _____.&#10;A)teeth erupted&#10;B)little hair growth&#10;C)be entirely dependent on maternal care&#10;D)have their eyes and ears closed

Accepted Answer

Precocial young are born in a relatively advanced state, with their eyes open, and they are often able to move around almost immediately after birth. They typically have their teeth erupted or are covered in down or fur, contrasting with altricial young, which are born in a more undeveloped state and are more dependent on parental care.

Question 8

A(n) would consume a diet of both plants and other animals.&#10;A)carnivore&#10;B)omnivore&#10;C)insectivore&#10;D)herbivore

Accepted Answer

An omnivore would consume a diet of both plants and other animals.

Question 9

Animals that are able to generate and maintain body temperature, have hair, and produce milk to feed their young are known as _____.&#10;A)endotherms&#10;B)passerines&#10;C)psittacines&#10;D)lagomorphs

Accepted Answer

The characteristics mentioned in the question (generating and maintaining body temperature, having hair, and producing milk) are all typical of endothermic animals, which are able to regulate their own body temperature through metabolic processes. Passerines, psittacines, and lagomorphs are all types of animals, but they do not necessarily share these specific characteristics.

Question 10

All mammals _____.&#10;A)give birth to live young&#10;B)give birth to altricial young&#10;C)are exotherms&#10;D)are vertebrates

Accepted Answer

All mammals are vertebrates, meaning they have a backbone or spinal column.

Deck 3: Introduction to Small Mammals