Deck 12: Marine Mammals

Question 1

Pinniped means

A) clawed footed.
B) flipper footed.
C) feather footed.
D) paddle footed.
E) split footed.

Answer 1

C

Question 2

Most pinnipeds mate:

A) every two years.
B) every four years.
C) once in their lifetime.
D) annually.
E) every three years.

Answer 2

D

Question 3

In eared seals, the main propulsive force for swimming is produced by the:

A) forelimbs.
B) hindlimbs.
C) undulations of the body.
D) tail.
E) caudal fin.

Answer 3

A

Question 4

The ____ feeds on penguins and other seals.

A) Guadalupe fur seal
B) elephant seal
C) Steller's sea lion
D) leopard seal
E) harbor seal

Question 5

All marine mammals:

A) are faster swimmers compared to other marine animals.
B) have lungs modified to breathe underwater.
C) are aggressive in obtaining food.
D) are intelligent compared to other marine animals.
E) have baleen.

Question 6

Which pinniped can use its hind limbs to walk on land?

A) Guadalupe fur seal
B) Steller's sea lion
C) leopard seal
D) elephant seal
E) harbor seal

Question 7

All the following are all major points of the article Where Have the Steller's Sea Lions Gone except:

A) Some biologists thought commercial fishing was culprit.
B) Killer whales may play a role in pinniped population regulation.
C) Scientific views undergo revision with new data and findings.
D) Scientists often come to contradictory conclusions when examining the same phenomenon.
E) Steller's sea lions decimated the salmon population in Alaska.

Question 8

Sea lions and seals belong to the suborder:

A) Carnivora.
B) Sirenia.
C) Cetacea.
D) Pinnipedia.
E) Odontoceti.

Question 9

Which of the following species is endangered

A) California sea lion
B) northern fur seal
C) Steller's sea lion
D) both a and b

Question 10

Marine mammals, because of the energy demands of being homeothermic, expend about ____ times as much energy as other marine organisms.

A) 5
B) 10
C) 15
D) 20
E) 25

Question 11

The deepest diving pinnipeds are the:

A) sea lions.
B) harbor seals.
C) Weddell seals.
D) elephant seals.
E) Stellar's sea lion.

Question 12

The entertaining seals of marine attraction parks are:

A) sea lions.
B) harbor seals.
C) elephant seals.
D) fur seals.
E) harp seals.

Question 13

All the following are characteristics of marine mammals except:

A) mammary glands.
B) gills.
C) a placenta.
D) being homeothermic.

Question 14

Male animals that mate with and control more than one female at a time are called:

A) hermaphroditic.
B) heterogenous.
C) polygynous.
D) androgynous.
E) monogamous.

Question 15

Known for the ability to dive deep, the ____ has set a record of 1530 m.

A) harbor seal
B) Weddel seal
C) Steller's sea lion
D) leopard seal
E) northern elephant seal

Question 16

Sea otters consume nearly ____% of their body weight per day.

A) 10
B) 25
C) 30
D) 40
E) 50

Question 17

The leopard seal's primary predator is called the:

A) sperm whale.
B) polar bear.
C) killer whale.
D) salt water crocodile.
E) Weddel seal.

Question 18

The structure used to amplify an elephant seal bull's roar is a(n):

A) inflated proboscis.
B) hallow tusk used as a horn.
C) sirenaphores.
D) blowhole.
E) melon.

Question 19

Sea otters are protected from the cold by having:

A) thick blubber.
B) thick fur.
C) waxy fur.
D) fatty tissue.
E) thick skin.

Question 20

Pinnipeds molt

A) in the ocean.
B) on shore.
C) in the winter.
D) throughout the year.
E) They do not molt.

Question 21

It is believed that cetaceans evolved from:

A) a terrestrial mammal.
B) a pinniped.
C) fishes.
D) polychaetes.
E) dinosaurs.

Question 22

The following are all similarities between sirenians and whales except:

A) streamlined, practically hairless bodies.
B) forelimbs modified to form flippers.
C) tail flukes.
D) diet of macrophytes.

Question 23

Baleen plates are composed of:

A) calcium carbonate.
B) cellulose.
C) keratin.
D) chitin.
E) silica.

Question 24

The food of most baleen whales consists of:

A) benthic invertebrates.
B) nektonic fishes.
C) algae.
D) plankton.
E) detritus.

Question 25

To reduce drag whales have eliminated

A) external ears.
B) pectoral fins.
C) external appendages.
D) mammary glands.
E) flukes.

Question 26

The sirenians

A) rest on shore.
B) bear young on land.
C) are completely aquatic.
D) are fish eaters.
E) don't have blubber since they live in tropical water

Question 27

Whales, dolphins, and porpoises all belong to the order:

A) Sirenia.
B) Cetacea.
C) Carnivora.
D) Pinnipedia.
E) Fissipedia.

Question 28

Bubble nets for confusing and trapping plankton are produced by:

A) gray whales.
B) humpback whales.
C) minke whales.
D) sperm whales.
E) dolphins.

Question 29

Myoglobin is a protein found in the muscles of cetaceans that:

A) stores energy.
B) stores oxygen.
C) maintains buoyancy.
D) maintains heat.
E) stores ATP.

Question 30

Adaptations for deep diving in cetaceans include all the following except:

A) expelling air from the lungs.
B) large lungs with large number of air sacs.
C) rib cage that can collapse.
D) sonar for detecting the depth.
E) high red blood cell count

Question 31

Through evolution, the hindlimbs of cetaceans have been modified, eventually becoming

A) flippers.
B) tail.
C) non-existent.
D) flukes.
E) enlarged.

Question 32

Those marine mammals most adapted to a marine existence are the

A) pinnipeds.
B) sirenians.
C) cetaceans.
D) sea otters.

Question 33

Manatees are mostly found in:

A) cold polar waters.
B) Antarctica.
C) tropical estuaries.
D) temperate coastal areas.
E) Eastern Pacific Ocean.

Question 34

The milk of cetaceans is very rich in:

A) fat.
B) protein.
C) carbohydrates.
D) cellulose.
E) DNA.

Question 35

The following are all differences between manatees and dugongs except:

A) fresh and seawater habitat for manatees, dugongs only live in seawater.
B) dugongs have a larger head.
C) dugongs have a shorter flipper.
D) manatees' forelimbs form flippers, dugongs' do not.

Question 36

The absence of sweat glands in cetaceans aids in

A) maintaining body heat.
B) conserving water.
C) increasing internal salinity.
D) reducing drag.
E) swimming efficiency.

Question 37

Manatees and dugongs belong to the order:

A) Pinnipedia.
B) Cetacea.
C) Carnivora.
D) Sirenia.
E) Fissipedia

Question 38

Adaptations for deep diving in cetaceans include all the following except:

A) large amount of hemoglobin.
B) large amount of cholesterol.
C) lowered sensitivity to lactic acid.
D) high levels of myglobin.
E) decreased metabolism.

Question 39

Manatees feed mostly on:

A) small fishes.
B) benthic invertebrates.
C) plankton.
D) aquatic plants.
E) other marine mammals.

Question 40

The greatest threat to the Florida manatees is

A) loss of habitat.
B) human predation.
C) being mauled or killed by boats.
D) stranding in thermal plumes of power plants.
E) disease from urban runoff.

Question 41

The only cetaceans known to feed on warm-blooded animals are the:

A) sperm whales.
B) bottlenose dolphins.
C) killer whales.
D) porpoises.
E) minke whales.

Question 42

Ambergris comes from the ____.

A) right whale
B) sperm whale
C) gray whale
D) orca
E) blue whale

Question 43

Tail cocking behavior in whales is thought to be for

A) killing prey.
B) attracting mates.
C) aggression.
D) preparation for a dive.
E) dislodging parasites.

Question 44

A group of whales is called a

A) harem.
B) pod.
C) covey.
D) herd.
E) bevy.

Question 45

All of the following are members of suborder Odontoceti, except:

A) dolphins.
B) sperm whales.
C) narwhales.
D) gray whales.
E) orcas.

Question 46

True seals rely on their hindlimbs for forward swimming propulsion.

Question 47

In eared seals, the hindlimbs can rotate at right angles to the body and can be used for walking on land.

Question 48

The largest of all the whales is the:

A) sperm whale.
B) sei whale.
C) humpback whale.
D) blue whale.
E) megalodon.

Question 49

All of the following are members of suborder Mysticeti, except:

A) humpback whales.
B) right whales.
C) orcas.
D) blue whales.
E) fin whales.

Question 50

Which whale is not a rorqual?

A) blue whale
B) fin whale
C) humpback whale
D) right whale
E) killer whale

Question 51

Spy hopping is a term given to whales when they:

A) jump out of the water.
B) partially get their body out of the water.
C) capture their food.
D) mate.
E) play in groups.

Question 52

The only population of humpback whales that is showing recovery from the effects of whaling is the:

A) North Pacific population.
B) North Atlantic population.
C) Maui population.
D) Southern Hemisphere population.
E) Southern Pacific population.

Question 53

The baleen whale which carries the most barnacles is the

A) right whale.
B) sperm whale.
C) gray whale.
D) orca.
E) blue whale.

Question 54

The melon of dolphins and other toothed whales is used for:

A) storage of food.
B) protecting the brain.
C) focusing sound pulses.
D) receiving sound pulses.
E) producing sounds.

Question 55

A whale that floated when harpooned was called a(n) ____.

A) orca
B) right whale
C) blue whale
D) fin whale
E) sperm whale

Question 56

One of the most favored food items of sperm whales is:

A) giant squid.
B) penguins.
C) plankton.
D) seals.
E) smaller cetaceans.

Question 57

Spy hopping behavior is thought to be for

A) mating.
B) observing objects other than whales on the surface.
C) capturing their food.
D) attracting a mate.
E) communicating with podmates.

Question 58

Breaching is the name given to the activity of whales when they:

A) mate.
B) jump out of the water.
C) capture their food.
D) migrate long distances.
E) give birth.

Question 59

Pinnipeds have to come ashore to give birth.

Question 60

Fin whales feed mostly on:

A) benthic invertebrates.
B) nektonic fishes.
C) algae.
D) krill.
E) detritus.

Question 61

The cetacean body is covered with fine hairs.

Question 62

Unlike pinnipeds, sirenians are completely free from the terrestrial environment.

Question 63

MATCHING
Match the food with the most closely associated whale.a.squid
b.crabs, cuttlefish, flounder and halibut
c.krill
Blue Whale

Question 64

Sea lions have shorter lactation periods than true seals.

Question 65

MATCHING
Match the food with the most closely associated whale.a.squid
b.crabs, cuttlefish, flounder and halibut
c.krill
Sperm Whale

Question 66

Cetaceans lack sweat glands in their skin.

Question 67

Manatees form pair bonds that last even after mating.

Question 68

Match the food with the closely associated predator.
a.crustaceans, molluscs and echinoderms
b.fish
c.sea urchins
d.water plants
Walruses

Question 69

Match the food with the closely associated predator.
a.crustaceans, molluscs and echinoderms
b.fish
c.sea urchins
d.water plants
Eared Seals

Question 70

Gray whales spend the winter months in the Bering Sea where they mate and give birth.

Question 71

Vision in toothed whales is very strong.

Question 72

Dolphins have a beak whereas porpoises have a rounded blunt head.

Question 73

Match the food item with the animal that consumes it.
a.vegetation
b.plankton
c.fish, squid
Baleen Whales

Question 74

Toothed whales use low frequency clicks to make out the outline of potential prey.

Question 75

MATCHING
Match the food with the most closely associated whale.a.squid
b.crabs, cuttlefish, flounder and halibut
c.krill
Beluga Whale

Question 76

Ambergris is produced by dolphins.

Question 77

Match the food with the closely associated predator.
a.crustaceans, molluscs and echinoderms
b.fish
c.sea urchins
d.water plants
Dugong

Question 78

Match the food item with the animal that consumes it.
a.vegetation
b.plankton
c.fish, squid
Toothed Whales

Question 79

Match the food with the closely associated predator.
a.crustaceans, molluscs and echinoderms
b.fish
c.sea urchins
d.water plants
Sea Otter

Question 80

The spermaceti of sperm whales is composed of waxy and oily materials.