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.

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

2.

Resident Orcas in British Columbia are:

Fish eaters

Marine mammal eaters

Omnivorous

Filter feeders

3.

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

Blue whale

Minke whale

Bryde's whale

Fin whale

4.

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

Focusing the sounds used in echolocation

Excreting

Feeding

Mating

5.

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

6.

Which of the following countries has formalised a moral opposition to whaling and prohibits killing and harassing of cetaceans to its citizens anywhere in the world?

Australia

Japan

Norway

Iceland

7.

What is the smallest rorqual (whale with throat grooves)?

The Common dolphin

The Bryde's whale

The Dugong

The Minke whale

8.

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

9.

The number of blowholes in Odontoceti is:

Two

One or two, depending on the species

One

Always one, except the Sperm whale which has two

10.

Which of the following cetaceans belong to the Delphinidae family?

Orca

False killer whale

Cuvier's Beaked whale

Manatee