Unit #8 Quiz #3
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Transcript of Unit #8 Quiz #3
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Unit #8 Quiz #3
Grade:«grade»
Subject:«subject»
Date:«date»
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1 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
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2 Dugongs can be found near:
A Florida
B New England
C West Africa
D Australia
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3 The two groups of whales are
A baleen & toothed
B baleen & cetacean
C toothed & cetacean
D cetacean& pinniped
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4 Which sound will travel farther in water below 100 meters
A High pitched sound
B Low pitched sound
C Cavitation
D Echolocation at 50 dB
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5 All of the following help cetaceans maintain their body temperature in cold waters, EXCEPT:
A large amounts of blubber
B dense hair for insulation
C high metabolic rates
D counter current blood flow
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6 All of the following countries still participate in whaling, EXCEPT:
A Japan
B Norway
C New Zealand
D Faroe Island
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7 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
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8 The lower jaw on many echolocating species is full of which macromolecule
A Carbohydrates
B Nucleic acids
C Amino Acids
D Lipids
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9 Which of the following is true about toothed whales, but not baleen whales:
A often solitary
B use echolocation to find food
C long annual migrations
D largest of the marine mammals
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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
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11 Which of the following is a Pinneped
A sea lion
B dolphin
C polar bear
D otter
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12 Which order of mammals has made the most complete transition to aquatic life
A Carnivora
B Cetaceans
C Edentata
D Pinnipeds
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13 Which of the following is a Cetacean?
A polar bear
B dolphin
C seal
D sea lion
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14 Zero decibels (dB) in air is approximately _________ dB in water.
A -26
B 0
C 26
D 100
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15 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
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16 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
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17 The following image is of:
A manatees
B dugongs
C baleen whales
D toothed whales
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18 Sea otters and polar bears are in which of the following orders:
A Carnivora
B Pinneped
C Cetacean
D Serinia
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19 Which species is the largest (physically) of marine mammals
A seals
B toothed whales
C walruses
D baleen whales
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20 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
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21 Polar bears can be found in the __________ region(s)
A Antarctic
B Temperate
C Equatorial
D Arctic
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22 All of the following are possible side effects of emitting low frequency sounds into the oceans EXCEPT:
A Mass stranding (200+ organisms) of marine mammals
B Gas bubbles forming in the bloodstream, organs, and joints of aquatic mammals as a result of acute decompression syndrome
C Cranial and pulmonary bleeding within aquatic mammals
D energy from the sound pushing gas bubbles into the bloodstream through the tissue of the lungs
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23 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
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24 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
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25 Which of the following sound waves represents the highest pitch sound:
A
B
CD They are equal volume