Unit #8, Quiz #1, 2013-2014 Grade: «grade» Subject: «subject» Date: «date»

Unit #8, Quiz #1, 2013-2014

Grade:«grade»

Subject:«subject»

Date:«date»

1 Mammals have a _______ chambered heart.

A 2

B 3

C 4

D 5

2 Which order of mammals have made the most complete transition to aquatic life

A Carnivora

B Cetaceans

C Serinia

D Pinnepeds

3 A walrus uses which of the following to detect the presence of bivalves in the sand

A Tusks

B Teeth

C Whiskers

D Front flippers with vestigial nails

4 The following animal is a:

A Seal

B Sea Lion

C Walrus

D Cetacean

5 Which species is the largest group of Pinnepeds

A seals

B dolphins

C walruses

D sea lions

6 Pinnepeds feed mostly on

A seals

B kelp

C squid & fish

D plankton

7 Manatees and dugongs are in which of the following orders:

A Pinniped

B Cetacea

C Odontoceti

D Sirenia

8 Which of the following is used to keep a mammal warm?

A Cetacean

B baleen

C whiskers

D blubber

9 Which of the following is a Pinneped

A sea lion

B dolphin

C polar bear

D otter

10 All of the following are true when comparing seals and sea lions, EXCEPT:

A Sea lions have external ears

B Anterior legs of seals are not useful for walking

C Seals have any external ears

D Anterior legs of sea lions are useful for walking on land

11 Which species is the largest (physically) of Pinnepeds

A seals

B dolphins

C walruses

D sea lions

12 All of the following are characteristics of mammals, EXCEPT:

A They are viviparous

B They nurse their young

C They are ectothermic

D They all have hair/fur at some point in their lives

13 Sea otters were hunted near extinction because:

A Sea otters were considered pest near aquaculture farms

B Sea otters have the most dense hair of any known animal

C Sea otters lost most of their habitat due to kelp farming

D Sea otters lost their major food souce (sea urchins) due to pollution

14 All of the following are characteristics of Pinnepeds, EXCEPT:

A They have the most dense fur of any mammal

B They are predominately carnivores

C They are streamline and excellent swimmers

D Examples of pinnepeds are seals, sea lions, and walruses

15 Polar bears can be found in the __________ region(s)

A Antarctic

B Temperate

C Equatorial

D Arctic

16 All of the following are true when considering sea otters, EXCEPT:

A they have the most dense fur of any mammal

B they are known for their use of tools

C they are territorial

D they use blubber to keep themselves warm and afloat

17 The root of the word mammal comes from the fact that mammals have

A More than 3 chambers in their heart

B Fur that covers most of their body

C The ability to give live birth

D Mammary glands

18 Sea otters are considered a capstone/keystone species. This means:

A without this species the ecosystem will become destabilized

B this species is responsible for keeping the bottom of the food chain stable

C this species is considered an apex predator

D as this species grows in population size, so does the overall population of the food chain

19 Which order of mammals is least adapted for an aquatic environment:

A Carnivora

B Cetaceans

C Serinia

D Pinnepeds

20 Seals and sea lions received legal protection under the Marine Mammal Protection Act (MMPA) of ______________.

A 1886

B 1911

C 1946

D 1972