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.

Which of the following species are known to sometimes kill other marine mammals?

Sperm whale (Physeter macrocephalus)

False killer whale (Pseudorca crassidens)

Humpback whale (Megaptera novaeangliae)

Orca (Orcinus orca)

2.

The reason(s) why cetaceans look more like fish than land mammals is (are):

Interspecific breeding

By coincidence

Convergent evolution

Divergent involution

3.

Is Orcinus orca a toothed or a toothless cetacean?

Toothless

Toothed

Orca is not a cetacean

None of the above

4.

The number of blowholes in Mysticeti is:

Two

One or two, depending on the species

One

Always two, except for the Bowhead whale which has only one

5.

All cetaceans are:

Warm-blooded mammals

Air-breathing animals

Filter feeders

Fish eaters

6.

Which of the following assertions are true?

Cetaceans evolved from land mammals

The ancestors of cetaceans always inhabited the sea

Cetaceans evolved from a now extinct warm-blooded fish

Baleen whales (Mysticeti) are believed to have evolved from reptiles

7.

Porpoises have the following distinctive features:

Lack of beak

Lack of blowhole

Spade-shaped teeth

They belong to the Phocoenidae family

8.

Who is the current record holder for deep diving among Marine Mammals?

Blue whale

Sperm whale

Elephant Seal

Cuvier's beaked whale

9.

Talking about evolution, the reason(s) why Cetaceans have almost completely lost their body hair since the time they were land mammals is (are):

Life in the ocean is so psychologically stressful

A fur is not as effective to keep a body warm in the water as it is on land

To increase streamlining

To avoid looking like seals and being hunted

10.

Which members of the Balaenopteridae family are known to prefer warm waters year round?

Blue whale

Minke whale

Bryde's whale

Fin whale