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.

Resident Orcas in British Columbia are:

Fish eaters

Marine mammal eaters

Omnivorous

Filter feeders

2.

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)

3.

In which place(s) are Orcas known to attack mother and calf Gray whale pairs?

Monterey Bay (CA, United States)

Kaikoura (New Zealand)

Portofino (Italy)

Peninsula Valdes (Argentina)

4.

Why is a stranded cetacean in a highly life-threatening condition?

Because it cannot breathe

Because its body design was not conceived by Nature to fully cope with gravity out of the water

Because it cannot efficiently dissipate heat on land (overheating)

Because it quickly gets dehydrated and its skin is also sensitive to the ultraviolet radiations of the sun

5.

Which of the following places are known to be summerly feeding grounds for migrating whales?

Tonga

The Bering Sea

Maldives

Antarctica

6.

Which species among the following has disappeared from the North Atlantic due to whaling?

Gray whale

Narwhal

Common dolphin

Vaquita

7.

The so-called melon in Odontoceti plays a crucial role in:

Focusing the sounds used in echolocation

Excreting

Feeding

Mating

8.

Which whale species is unique in having three ridges on the top of its head rather than only one?

Blue whale

Fin whale

Humpback whale

Bryde's whale

9.

Which of the following assertions about the Humpback whale are true?

It is the most acrobatic of all baleen whales (Mysticeti)

It only inhabits the Northern Hemisphere

It has unusually long, very distinctive flippers (pectoral fins)

Its songs (only males sing) are well known for their complexity and variety

10.

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