unit #9 quiz #2 2012-2013
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Unit #9 Quiz #2 2012-2013. Grade:. «grade». Aquatic Science. Subject:. «date». Date:. 1. The two groups of whales are. A. baleen & toothed. B. baleen & cetacean. C. toothed & cetacean. D. cetacean& pinniped. 2. Mammals have a _______ chambered heart. A. 2. B. 3. C. 4. D. - PowerPoint PPT PresentationTRANSCRIPT
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Unit #9 Quiz #2 2012-2013
Grade:«grade»
Subject:Aquatic Science
Date:«date»
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1 The two groups of whales are
A baleen & toothed
B baleen & cetacean
C toothed & cetacean
D cetacean& pinniped
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2 Mammals have a _______ chambered heart.
A 2
B 3
C 4
D 5
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3 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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4 Polar bears can be found in the __________ region(s)
A Antarctic
B Temperate
C Equatorial
D Arctic
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5 Dugongs can be found near:
A Florida
B New England
C West Africa
D Australia
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6 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
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7 Sea otters and polar bears are in which of the following orders:
A Carnivera
B Pinneped
C Cetacean
D Serinia
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8 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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9 Sea otters are considered a capstone/keystone species. This means:
A without this species the ecosystem will become destabilized
B this species is responsible for keeping the bottom of the food chain stable
C this species is considered an apex predator
D as this species grows in population size, so does the overall population of the food chain
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10 Which of the following is a Cetacean?
A polar bear
B dolphin
C seal
D sea lion
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11 Cetaceans (dolphins/whales) look a lot like chondrichthyes, these similar structures are
A homologous
B evolutionary
C analogous
D caudal fins
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12 All of the following are characteristics of Pinnepeds, EXCEPT:
A They have the most dense fur of any mammal
B They are predominately carnivores
C They are streamline and excellent swimmers
D Examples of pinnepeds are seals, sea lions, and walruses
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13 Which species is the largest (physically) of Pinnepeds
A seals
B dolphins
C walruses
D sea lions
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14 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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15 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
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16 A baleen is/are
A large oval teeth
B an organ used for echolocation
C large, flat teeth for chewing plants
D a series of fibrous plates
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17 Which of the following is a Pinneped
A sea lion
B dolphin
C polar bear
D otter
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18 A walrus uses which of the following to detect the presence of bivalves in the sand
A Tusks
B Teeth
C Whiskers
D Front flippers with vestigial nails
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19 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 bodies
C the ability to give live birth
D mammory glands
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20 All of the following countries still participate in whaling, EXCEPT:
A Japan
B Norway
C New Zealand
D Faroe Island
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21 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