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.

The diet of Mysticeti (toothless whales) includes:

Copepods

Krill

Small fish

Marine mammals

2.

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

Focusing the sounds used in echolocation

Excreting

Feeding

Mating

3.

Talking about the ability of some cetaceans to make sounds and process the echoes bouncing back:

Echolocating cetaceans can recognise a woman being pregnant and may be therefore particularly careful and cautious in her presence

Echolocating cetaceans can see air in our lungs and therefore understand we cannot breathe underwater

Being echolocated by a cetacean is a guarantee the animal will not bump into you by mistake

Echolocation is the use of sound (and relative echoes) to locate objects, estimate their distance, shape and density

4.

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

5.

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

6.

Balaena mysticetus is the scientific name for:

Bowhead whale

Humpback whale

It is a synonym with Mysticeti

Great Misty whale

7.

Is Orcinus orca a toothed or a toothless cetacean?

Toothless

Toothed

Orca is not a cetacean

None of the above

8.

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

9.

Which of the following cetaceans can move its neck?

Sei whale

Bottlenose dolphin

Beluga

Dall's porpoise

10.

Resident Orcas in British Columbia are:

Fish eaters

Marine mammal eaters

Omnivorous

Filter feeders