1. All Members of Order Lagomorpha Have What Characterstic(S) in Common?

Exam 2

BIOL 140

1. All members of Order Lagomorpha have what characterstic(s) in common?

a. Omnivorous diet

b. Saltatory locomotion

c. Long, erect ears

d. Second pair of incisors behind first uppers

e. All of the above

2. Which of the following would not show claws in a track?

a. gray wolf

b. badger

c. fisher

d. lynx

e. river otter

3. Hibernation is typically seen in which member of Order Lagomorpha?

a. Pika

b. Brush rabbit

c. Hares

d. Pygmy rabbit

e. none of the above

4. Among carnivores, ______are the least carnivorous.

a. minks

b. black bears

c. red foxes

d. coyotes

5. When I feel threatened I stomp my feet and then I do a hand-stand with my tail draped over my head. I am a ______?

a. striped skunk

b. mink

c. spotted skunk

d. short-tailed weasel

e. fisher

6. The common name for Urocyon cinereoargenteus is?

a. gray fox

b. gray wolf

c. red fox

d. badger

e. none above

7. The smallest Canid found in the PNW (SE Oregon) that plays a large role in controlling the populations of small rodents is…

a. gray wolf

b. coyote

c. red fox

d. kit fox

e. gray fox

8. One way in which hares differ from rabbits is…

a. Hares are smaller than rabbits

b. Hares are herbivores

c. Hare young are born precocial

d. Hares have short puffy tails

9. Which has the longest, deepest hibernation in the winter months?

a. grizzly bear

b. black bear

c. wolverine

d. fisher

e. me

10. What is the status of the (pure bred) Columbia Basin pygmy rabbit in Washington?

a. Has a large vibrant population

b. Has a declining population

c. On the Endangered species list

d. It has been extirpated

11. Which of the following organisms has delayed embryonic implantation?

a. lynx

b. cougar

c. dall’s porpoise

d. orca

e. sea otter

12. What unique physical characteristic does Enhydra lutris possess for carrying a favorite tool?

a. fully opposable thumbs

b. cheek pouches

c. armpit pouches

d. prehensile tail

e. fanny pack

13. The scientific name for the bobcat is______.

a. Enhydra lutris

b. Lynx rufus

c. Lynx canadensis

d. Lontra canadensis

14. This organism is known for its seasonal coat change, dynamic relationship with the Canadian lynx, and possesses huge heavily furred hind feet for movement on top of snow.

a. Black-tailed jackrabbit

b. Black-tailed deer

c. Moose

d. Snowshoe hare

e. None of the above

15. While hibernating over winter, a bear will urinate and defecate in its den.

a.  True

b.  False

16 – 20. Choose from below to identify the corresponding organisms on the screen.

16. a. Ochotona princeps

b. Sylvilagus bachmani

c. Vulpes macrotis

d. Ursus arctos

e. Martes pennanti

17. a. Vulpes vulpes

b. Gulo gulo

c. Bison bison

d. Mephitis mephitis

e. Blah blah

18. a. Mink

b. Long tailed weasel

c. Fisher

d. River otter

e. American marten

19. a. Canis latrans

b. Vulpes vulpes

c. Vulpes macrotis

d. Urocyon cinereoargenteus

e. Canis lupus

20. a. brush rabbit

b. pika

c. snowshoe hare

d. blacktailed jackrabbit

e. jackalope

21 – 25. Choose from below to identify the corresponding organisms on the screen.

21. a. Martes pennanti

b. Lontra canadensis

c. Mustela vison

d. Enhydra lutris

e. Martes americana

22. a. Taxidea taxus

b. Ursus arctos

c. Ursus americana

d. Gulo gulo

e. Lynx canadensis

23. a. eastern cottontail

b. white tailed jackrabbit

c. brush rabbit

d. snowshoe hare

e. pika

24. a. Ursus arctos

b. Gulo gulo

c. Ursus americana

d. Canis lupus

e. Spotted skunk

25. a. Mustela erminea

b. Spilogale gracilis

c. Mephitis mephitis

d. Mustela frenata

e. Mustela vison

Short Answer:

26 – 30. Identify numbered specimens around the room with common and latin name. (Answer on back of scantron) (2 pts. ea.)

Essay:

Choose and answer any (only) 3 of the following (5 pts. ea.)

1. Describe two changes coyotes have experienced as a result of the extirpation of wolves (like in Yellowstone). What might happen to coyotes as wolves return to their former ranges?

2. Describe the difference between plantigrade and digitigrade locomotion. Provide an example of a Pacific Northwest organism for each type of locomotion.

3. Describe the third participant(s) in the dynamics of the predator-prey relationship between lynx and snowshoe hares. How does it play this role?

4. What is meant by the term “holarctic”? Provide an example of an organism from Order Carnivora that is holarctic.

5. What would be the benefit of delayed embryonic implantation? What group of mammals uses this strategy?

Bonus:

(2 pts.)

Name two mammals covered for this exam that are considered keystone species.