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Unit #8, Quiz #1, 2013-2014 Grade: «grade» Subject: «subject» Date: «date»
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1Mammals have a _______ chambered heart. A 2 B 3 C 4 D 5
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2Which order of mammals have made the most complete transition to aquatic life A Carnivora B Cetaceans C Serinia D Pinnepeds
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3A 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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4The following animal is a: A Seal B Sea Lion C Walrus D Cetacean
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5Which species is the largest group of Pinnepeds A seals B dolphins C walruses D sea lions
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6Pinnepeds feed mostly on A seals B kelp C squid & fish D plankton
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7Manatees and dugongs are in which of the following orders: A Pinniped B Cetacea C Odontoceti D Sirenia
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8Which of the following is used to keep a mammal warm? A Cetacean B baleen C whiskers D blubber
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9Which of the following is a Pinneped A sea lion B dolphin C polar bear D otter
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10All 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 any external ears D Anterior legs of sea lions are useful for walking on land
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11Which species is the largest (physically) of Pinnepeds A seals B dolphins C walruses D sea lions
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12All 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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13Sea 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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14All 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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15Polar bears can be found in the __________ region(s) A Antarctic B Temperate C Equatorial D Arctic
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16All 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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17The 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
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18Sea 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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19Which order of mammals is least adapted for an aquatic environment: A Carnivora B Cetaceans C Serinia D Pinnepeds
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20Seals and sea lions received legal protection under the Marine Mammal Protection Act (MMPA) of ______________. A 1886 B 1911 C 1946 D 1972
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