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Sharks 2/4
Test Description: Marine biology
Instructions: Answer all questions to get your test result.
1) the bull shark will travel to the mouth of a river, but no farher up a reiver
A
true
B
false
2) a well fed shark will not attack
A
true
B
false
3) Sharks are able to sense electricity with a
A
pineal body
B
ampullae of Lorenzini
C
spiracle
D
tongue
4) Sharks are
A
cannibals
B
detrivores
C
carnivores
D
carnivores, detrivores and cannibals
5) sharks maintain an osmotic balance between the water they live in and their bodily fludis by
A
maintaining bodily fluids at the same salt concentration as the water they live in
B
excreting large amounts of salt
C
drinking large quanitites of water and maintaining bodily fluids at the same salt concentration as the water they live in
D
drinking large quanitites of water
6) the frilled shark is considered a living fossil in part because
A
its mouth is at the front of the head
B
its nostrils are on the top of its head
C
none of the answers are correct
D
its nostrils are on the top of its head and its mouth is at the front of the head
7) A fossil of a sharks ____ is commonly found, and a fossils of a sharks _____ is rare, but a fossil of a sharks ____ is very rare
A
soft tissue, skeleton, teeth,
B
teeth, skeleton, soft tissue
C
teeth, soft tissue, skeleton
D
skeleton, teeth, soft tissue
8) most sharks reproduce by
A
asexual means
B
bearing live young
C
laying eggs
9) in sharks, the function of the pineal body is to
A
sense light
B
sense electricity
C
store sperm
D
smell odors out of the water
10) the function of the male clasper is to
A
attract females
B
deliver sperm
C
none of the answers are correct
D
clasp the female during mating
*select an answer for all questions
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