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 cetaceans are only found in the Gulf of California (Sea of Cortez)?

Gray whale (Eschrichtius robustus)

Boto (Inia geoffrensis)

Vaquita (Phocoena sinus)

Dall's porpoise (Phocoenoides dalli)

2.

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

3.

Is Orcinus orca a toothed or a toothless cetacean?

Toothless

Toothed

Orca is not a cetacean

None of the above

4.

Which of the following animals are not cetaceans?

Dugong

Manatee

Sperm whale

Beluga

5.

Strandings of cetaceans can be caused by:

Military sonar systems

Infections and other diseases

Local changes of the Earth's magnetic field

Ancestral desire of cetaceans to come back to land

6.

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

7.

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

Its blow is unique in being projected forward and on the left

It belongs to the suborder Odontoceti

It can dive as deep as 2000 metres (6000 feet)

There is an organ in its head called Spermaceti, containing huge amounts of a waxy substance (which has nothing to do with sperm, though)

8.

All cetaceans are:

Warm-blooded mammals

Air-breathing animals

Filter feeders

Fish eaters

9.

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

The Sperm whale

The Fin whale

Some dinosaur

The Blue whale

10.

The English name for Tursiops truncatus is:

Hector's dolphin

Northern Bottlenose whale

Common dolphin

None of the above