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.

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

2.

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

It performs the longest seasonal migrations between breeding and feeding grounds

It has a higher than average number of parasites

Its scientific name is Eschrichtius robustus

Females are larger than males

3.

What is the biggest animal that has ever lived on Earth?

The Sperm whale

The Fin whale

Some dinosaur

The Blue whale

4.

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

5.

Resident Orcas in British Columbia are:

Fish eaters

Marine mammal eaters

Omnivorous

Filter feeders

6.

Which of the following species belong to the suborder Mysticeti?

Sperm whale

Blue whale

Bottlenose dolphin

Northern Right whale

7.

Porpoises have the following distinctive features:

Lack of beak

Lack of blowhole

Spade-shaped teeth

They belong to the Phocoenidae family

8.

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

Blue whale

Minke whale

Bryde's whale

Fin whale

9.

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)

10.

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