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 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

2.

The English name for Tursiops truncatus is:

Hector's dolphin

Northern Bottlenose whale

Common dolphin

None of the above

3.

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

4.

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

5.

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

6.

Which of the following species belong to the suborder Mysticeti?

Sperm whale

Blue whale

Bottlenose dolphin

Northern Right whale

7.

Balaena mysticetus is the scientific name for:

Bowhead whale

Humpback whale

It is a synonym with Mysticeti

Great Misty whale

8.

Some river dolphins are:

Able to crawl for more than a mile on land

Almost completely blind

In great danger of extinction

Well adapted to feed on birds

9.

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

10.

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

Southern Right whale

Bottlenose dolphin

Humpback whale

Dall's porpoise