unit #8 exam review quiz grade: «grade» subject: «subject» date: «date»
Post on 23-Dec-2015
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2 Which of the following is considered a solitary animal:
A Blue Whale (baleen whale)
B Common Dolphin (toothed whale)
C Sea Otter (Carnivora)
D Fur Seal (Pinniped)
3 A blue whale using sound for communication would probably create which of the following sounds
A High pitched between 0 and 100 dB
B Low pitched between 0 and 100 dB
C Low pitched between 100 and 200 dB
D High pitched between 100 and 200 dB
4 Sea otters were hunted near extinction because:
A Sea otters were considered pest near aquaculture farms
B Sea otters have the most dense hair of any known animal
C Sea otters lost most of their habitat due to kelp farming
D Sea otters lost their major food souce (sea urchins) due to pollution
7 All of the following are used by marine mammals to keep themselves warm, EXCEPT:
A A large oil-filled liver
B A thick layer of blubber
C A high metabolism in smaller cetaceans
D Countercurrent blood flow in the flukes and fins of cetaceans
8 All of the following are characteristics of mammals, EXCEPT:
A They are viviparous
B They nurse their young
C They are ectothermic
D They all have hair/fur at some point in their lives
9 Sea otters and polar bears are in which of the following orders:
A Carnivera
B Pinneped
C Cetacean
D Serinia
10 Which of the following was the first cetacean (that we know of) that was severely depleted from whaling due to its slow-moving & surface dwelling habits:
A Blue Whale
B Bottle-nosed dolphin
C Humpback Whale
D Right/Bowhead Whale
11 The International Whaling Commission (IWC) was originally established in 1942 for which of the following reasons:
A To prevent the slaughter of marine mammals
B To regulate the amount of whaling in order to prevent "over fishing"
C To prevent the "fishing" of endangered animals such as sea otters
D To assist indigenous peoples in for their right to slaughter whales, even when they are considered endangered
12 Which of the following would best describe a sound that would travel a great distance underwater:
A high pitched, high amplitude
B low pitched, high amplitude
C low pitched, low amplitude
D high pitched, low amplitude
14 A walrus uses which of the following to dig upbivalves in the sand
A Tusks
B Claws
C Whiskers
D Front flippers with vestigial nails
15 Polar bears can be found in the __________ region(s)
A Antarctic
B Temperate
C Equatorial
D Arctic
17 Which of the following sound waves represents the highest pitch sound:
A
B
C
D They are equal volume
18 Why do large baleen whales use low frequency sound:
A The low frequency sound is ideal for finding fatty copepods
B They have long & solitary migrations & need to communicate over long distances
C The lower frequency sounds are better for finding large & fatty prey
D The low frequency sound is effective for short range communication within pods of whales
19 Which order of mammals have made the most complete transition to aquatic life
A Carnivore
B Cetaceans
C Serinia
D Pinnepeds
21 Cetaceans (dolphins/whales) look a lot like chondrichthyes, these similar structures are
A homologous
B evolutionary
C analogous
D caudal fins
22 All of the following are true when comparing seals and sea lions, EXCEPT:
A Sea lions have external ears
B Anterior legs of seals are not useful for walking
C Seals have external ears
D Anterior legs of sea lions are useful for walking on land
24 The root of the word mammal comes from the fact that mammals have
A More than 3 chambers in their heart
B Fur that covers most of their body
C The ability to give live birth
D Mammary glands
25 Manatees and dugongs are in which of the following orders:
A Pinniped
B Cetacea
C Odontoceti
D Sirenia
26 A loss of which of the following would prevent a common dolphin (toothed whale) from absorbing sound bouncing back during echolocation:
A vocal cords
B melon
C mandibular fat
D auditory bulbs
27 Which of the following characteristics would you expect to find in a toothed whale
A Relatively large in size for a cetacean
B High pitched sound is used for echolocating food
C The animal lives alone for the majority of its life
D The animal migrates all over the globe
28 Seals and sea lions received legal protection under the Marine Mammal Protection Act (MMPA) of ______________.
A 1886
B 1911
C 1946
D 1972
29 All of the following are true when considering sea otters, EXCEPT:
A they have the most dense fur of any mammal
B they are known for their use of tools
C they are territorial
D they use blubber to keep themselves warm and afloat
30 Which of the following is used by cetaceans to focus/project sounds for echolocation/communication:
A The melon
B The fatty lower jaw
C The vocal cords
D The hammer and anvil of the ear
32 Which of the following is true about toothed whales, but not baleen whales:
A Largest of the marine mammals
B Long annual migrations
C Use echolocation to find food
D Often solitary
33 Which of the following is used to create whistles and clicks in a cetacean:
A blowhole
B nasal cavity
C phonic lips
D melon
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