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Cetaceans

Total questions: 22

Worksheet time: 11mins

Name
Class
Date
1.

What is this animal?

a)

porpoise

b)

baluga

c)

dolphin

d)

orca

2.

What is this animal?

a)

Narwhal

b)

beluga

c)

porpoise

d)

dolphin

3.

Rows of horn-like plates that project from the upper jaws of filter-feeding whales are called

a)

barnacles

b)

callosites

c)

baleen

d)

throat folds

4.

The order of Cetaceans are all

a)

ovooparous

b)

oviviviparous

c)

viviparous

d)

it varies from cetacean to cetacen

5.

There are a total of _____ species in the order Cetacea

a)

52

b)

68

c)

79

d)

81

6.

All cetaceans are carnivores

a)

True

b)

False

7.

Dolphins and porpoises only account for a very small percentage of the toothed whales.

a)

True

b)

False

8.

The largest of all the toothed whales is the 

a)

Blue Whale

b)

Narwhal

c)

Gray Whale

d)

Sperm Whale

9.

An intestinal secretion found in whales that is used in very expensive perfumes.

a)

spermacety

b)

angola

c)

ambergris

d)

mucosa

10.

The most familiar of the dolphin species is the

a)

common dolphin

b)

spotted dolphin

c)

white-sided

d)

bottlenose

11.

The largest of all the Cetaceans is the

a)

Blue whale

b)

Sperm Whale

c)

Killer Whale

d)

Humpback Whale

12.

A method of analyzing sound waves to locate objects in a water column.  This is used by Cetaceans to locate objects

a)

sonar

b)

radar

c)

echolocation

d)

stalking

13.

Which marine animal has no known NATURAL predators?

a)

Great White Shark

b)

Blue Whale

c)

Colossal Squid

d)

Killer Whale

14.

Most Cetaceans are filter-feeders.

a)

True

b)

False

15.

The two main groups of whales are the toothed whales and the

a)

gummy whales

b)

porpoises

c)

Baleen Whales

d)

bubba whales

16.

The pathway for air to come in and out of the whale is the 

a)

blowhole

b)

air sac muscles

c)

nasal plug

d)

lower jaw

17.

Controls pressure while the sounds are being made from the Cetacean

a)

air sac muscles

b)

lower jaw

c)

nasal plug

d)

flipper

18.

Part of the dolphin that is responsible for making the clicking sounds

a)

blowhole

b)

melon

c)

air sac muscles

d)

nasal plugs

19.

Part of the Cetacean that focuses and directs the clicks

a)

melon

b)

blowhole

c)

air sac muscles

d)

nasal plugs

20.

Part of the Cetacean that receives the clicks and sends them to the inner ear

a)

Melon

b)

blowhole

c)

nasal pugsl

d)

lower jaw

21.

What is a whale break?

a)

A surface break

b)

a deep dive

c)

a fast swim technique

d)

a defense mechanism

22.

What appears to be the killer whales favorite food?

a)

Great White Shark

b)

penguins

c)

seals

d)

manthan