Essentials/History of Oceanography Grade: «grade» Subject: «subject» Date: «date»
Unit #8, Quiz #1, 2013-2014 Grade: «grade» Subject: «subject» Date: «date»
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Transcript of Unit #8, Quiz #1, 2013-2014 Grade: «grade» Subject: «subject» Date: «date»
2 Which order of mammals have made the most complete transition to aquatic life
A Carnivora
B Cetaceans
C Serinia
D Pinnepeds
3 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
7 Manatees and dugongs are in which of the following orders:
A Pinniped
B Cetacea
C Odontoceti
D Sirenia
10 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 any external ears
D Anterior legs of sea lions are useful for walking on land
12 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
13 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
14 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
15 Polar bears can be found in the __________ region(s)
A Antarctic
B Temperate
C Equatorial
D Arctic
16 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
17 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
18 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
19 Which order of mammals is least adapted for an aquatic environment:
A Carnivora
B Cetaceans
C Serinia
D Pinnepeds