Fun with Quizzes

Are you a Cetacean expert?

Instructions
To pass the test you must answer correctly at least 7 questions out of 10. For each question, one or more answers can be correct and you need to select all the correct options to score a point. Test evaluation is immediate and does not require you to provide any personal data.

1.

Cetaceans are mammals. It follows that:

They cannot be very streamlined

They lay eggs

They need to surface from time to time in order to breathe

They nourish their young with milk

2.

Herman Melville's white whale in the novel Moby Dick was actually:

A Great White Shark

A Whale Shark

A Sperm whale

A Blue whale

3.

Cetaceans can keep their body warm in the water by means of:

A thick layer of proteins under their skin, called blubber

A huge production of heat, due to constant swimming

A thick layer of fat under their skin, called blubber

A special countercurrent blood-vessel system, which limits the quantity of heat lost from their flukes and flippers

4.

What baleen whales are mostly seen in Peninsula Valdes (Argentina)?

Orcas, which hunt seal and sea lion pups right up the beach

Southern Right whales

Blue whales

None of the above

5.

Which of the following cetaceans can reach speeds of over 30 km/h?

Southern Right whale

Bottlenose dolphin

Humpback whale

Dall's porpoise

6.

Cetaceans, compared to humans, have:

A higher concentration of myoglobin in muscles

A bigger lung volume relative to total body volume

A higher amount of blood in their circulatory system, relative to total body weight

More efficient biochemical pathways, which enhance their tolerance towards lactic acid

7.

Which of the following cetaceans are only found in the Gulf of California (Sea of Cortez)?

Gray whale (Eschrichtius robustus)

Boto (Inia geoffrensis)

Vaquita (Phocoena sinus)

Dall's porpoise (Phocoenoides dalli)

8.

Balaena mysticetus is the scientific name for:

Bowhead whale

Humpback whale

It is a synonym with Mysticeti

Great Misty whale

9.

Porpoises have the following distinctive features:

Lack of beak

Lack of blowhole

Spade-shaped teeth

They belong to the Phocoenidae family

10.

What is the biggest animal that has ever lived on Earth?

The Sperm whale

The Fin whale

Some dinosaur

The Blue whale