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 Mexican bays and lagoons of San Ignacio, Guerrero Negro and Magdalena are world-famous breeding grounds for:

Humpback whales

Blue whales

Sperm whales

Gray whales

2.

Which of the following baleen whales are unmistakable because of their typical V-shaped blow?

Gray whale

Right whale

Minke whale

Humpback whale

3.

Is Orcinus orca a toothed or a toothless cetacean?

Toothless

Toothed

Orca is not a cetacean

None of the above

4.

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

5.

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)

6.

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

7.

Cetaceans are mammals. It follows that:

They cannot be very streamlined

They lay eggs

They need to surface from time to time in order to breathe

They nourish their young with milk

8.

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

Focusing the sounds used in echolocation

Excreting

Feeding

Mating

9.

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

10.

The Hector's dolphin is:

One of the smallest of all cetaceans

A dolphin that can only be found in New Zealand waters

A highly endangered species

A close relative of the Hector's beaked whale