BIO145 Marine Biology Lesson 7 Quiz

| August 14, 2017

1
of 25
Penguins

live in polar regions of the Northern and Southern hemispheres.

can be found as far north as the Equator.

are ectotherms.

time their reproduction so that eggs hatch during the winter.

are able to fly when disturbed.

Question
2
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Seals, sea lions, and the walrus are classified as belonging to the order

Carnivora.

Sirenia.

Pinnipedia.

Cetacea.

Protochordata.

Question
3
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Sea lions can be readily distinguished from seals because in contrast to seals, sea lions have

a short neck.

posterior flippers used in swimming.

anterior flippers that cannot be rotated backward.

posterior flippers that cannot be rotated backward.

external ears.

Question
4
of 25
The walrus feeds mostly on

clams.

squid.

salmon and other fish.

kelp and other large seaweeds.

dead animals.

Question
5
of 25
One can tell that cetaceans are mammals because they

have hair.

are cold-blooded.

are ovoviviparous.

must reproduce in the water.

migrate.

Question
6
of 25
Which of these is an example of a toothed whale?

Sperm

Right

Gray

Fin

Blue

Question
7
of 25
Porpoises can be distinguished from dolphins by comparing their

flippers.

fluke.

reproductive strategies.

teeth.

blowholes.

Question
8
of 25
Blubber is found in all of these marine mammals except which of the following?

Killer whale

Seals

Sea otters

Sea lions

Manatees (sea cow)

Question
9
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All of these are functions of blubber except

insulation.

circulation.

buoyancy.

food reserve.

protection.

Question
10
of 25
Baleen plates are

rigid and have small hairs on one side only.

soft and have hairs all around their surface.

rigid and have hairs all around their surface.

rigid without any hairs.

soft without any hairs.

Question
11
of 25
Ambergris is _______________________.

decayed blubber made into joint ointment

undigested gut material from sperm whales

a fine perfume made from whale oil

special baleen found in the blue whale

a small island in the Caribbean where whales congregate

Question
12
of 25
Dolphins and other whales adapt for deep diving by

closing their ear openings.

emitting sound to clear their ears.

taking in as much air as possible.

increasing blood circulation to the skin.

collapsing their lungs.

Question
13
of 25
Which of the following is not an adaptation for deep diving in cetaceans?

Having more red blood cells to store more oxygen

Having more hemoglobin to store more oxygen

Slowing down of the heart rate

Lower tolerance to lactic acid

Having a lot of myoglobin in muscles to store more oxygen

Question
14
of 25
In apneustic breathing, which is practiced by most marine mammals, ______________________.

a small amount of air is kept in the lungs before diving

a large amount of air is kept in the mouth before diving

normal breathing is maintained before diving

several deep breaths are taken before exhaling and diving

no actual breathing takes place before diving

Question
15
of 25
Echolocation is a sense that relies on

vibrations.

sound.

smell.

vision.

electromagnetic waves.

Question
16
of 25
Echolocation is present in

all baleen whales

all toothed whales

some baleen whales

some toothed whales

some baleen whales AND most toothed whales

Question
17
of 25
The spermaceti organ of sperm whales is thought to regulate buoyancy and which of the following?

Store food

Produce sound

Assist in oxygen storage

Collect undigested food

Focus and direct sound waves

Question
18
of 25
Breaching refers to whales

jumping above the surface.

getting stranded on shore.

singing.

emitting sound for navigation.

diving deep to feed.

Question
19
of 25
The humpback and other baleen whales migrate every year to

feed in Antarctica during winter.

reproduce in Antarctica during summer.

reproduce in the tropics during winter.

feed in the tropics during winter.

feed in the tropics during summer.

Question
20
of 25
Delayed implantation of the embryo allows pinnipeds to

nurse a pup while pregnant.

time birth with the arrival to the breeding area.

delay courtship for a year.

establish harems.

ovulate after copulation.

Question
21
of 25
Which of the following alternatives does not apply to the typical cetacean calf?

Born tail first

Establishes a long and strong bond with its mother

Feeds on very rich milk that is squirted directly into its mouth

Is born with a developed blubber

Must swim to the surface immediately after birth

Question
22
of 25
Which of the following is accurate regarding Emperor penguins?

Pairs mate for life

Lay two eggs during winter

Live in the Arctic

Female tends egg during development

Eggs develop in about 64 days

Question
23
of 25
Convergent evolution means that

organisms possess similar structures because they have a similar lifestyle.

organisms possess similar structures because they descended from a common ancestor.

closely related organisms have evolved and do not resemble one another anymore.

closely related organisms have different structures for same purpose.

none of the above.

Question
24
of 25
An example of convergent evolution is which of the following?

Dolphins and whales

Manatees and dugongs

Dolphins and fish

Seals and fur seals

Dolphins and sea otters

Question
25
of 25
Which
of the following marine birds has a long, forked tail and soars along
the coast forcing other birds to regurgitate fish in midair?

Arctic tern

Sandpipers

Pelicans

Frigatebirds

Penguins

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