27 Jun BIO145 Marine Biology Lesson 7 Quiz
Question
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 of 25 Seals, sea lions, and the walrus are classified as belonging to the order
Carnivora.
Sirenia.
Pinnipedia.
Cetacea.
Protochordata.
QUESTION
3 of 25 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 of 25 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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