American Public University SCIN 401 Mammalogy Quiz Ch 13 1)Which of the following processes is responsible for phylogenetically unrelated rodent species that are morphologically and ecologically similar?     A

American Public University

SCIN 401

Mammalogy Quiz

Ch 13

1)Which of the following processes is responsible for phylogenetically unrelated rodent species that are morphologically and ecologically similar?

A.            convergent evolution

B.            cospeciation

C.            adaptive radiation

D.            physiological adaptation

E.            coevolution

Question 2

What morphological character(s) is (are) important of rodent incisors in order to survive heavy wear?

A.            chisel shaped

B.            ever growing

C.            enlargement

D.            posterior

E.            A, B, and C

Question 3

Match the suborder with correct list of representative taxa:

1.            Sciuromorpha

2.            Castorimorpha

3.            Myomorpha

4.            Anomaluromorpha

5.            Hystricomorpha

Question 4

Identify the mammalian order of this skull:

•             A. Rodentia

•             B. Chiroptera

•             C. Lagomorpha

•             D. Soricomorpha

•             E. Perrissodactyla

Question 5

Why are solenodons endangered?

A.            introduced predators

B.            habitat destruction

C.            water contamination from pesticide runof

D.            A and B

E.            All of the above

Question 6

What is the apparent advantage to the venomous saliva of several species of shrews and solenodons?

A.            Their venomous saliva breaks down muscle fibers of prey quickly.

B.            In antagonistic encounters with other males, the venomous saliva is used resulting in death of one of the males.

C.            The venomous saliva is used to defend against canid predators.

D.            Shrews and solenodons with venomous saliva are able to attack and consume prey much larger than themselves.

E.            There is no apparent advantage to the venom but rather it is a relict ancestral character.

Question 7

What is the primary known function of the structure in this picture?

•             A. chemoreception

•             B. olfaction

•             C. electroreception

•             D. touch reception

•             E. lactation

Question 8

Which of the following is not a structure of a bat’s wing?

A.            Plagiopatagium

B.            Uropatagium

C.            Chiropatagium

D.            Propatagium

E.            Calcarpatagium

Question 9

What are two key innovations of Chiroptera?

A.            Plantigrade motion and chemoreception

B.            Fossorial claws and mechanoreception

C.            Flight and echolocation

D.            Arboreal adapted digits and acute olfaction

Question 10

Echolocation in most bat species is produced by

A.            the esophagus and is supersonic.

B.            wing motion and is audible.

C.            the larynx and is ultrasonic.

D.            the tragus and is hypersonic.