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Ch 7
Test Description: Water
Instructions: Answer all questions to get your test result.
1) The ocean is stratified with __________ layers below ________ layers
A
denser, less dense
B
less dense, denser
2) The surface zone accounts for approximatel _______ percent of the ocean's volume
A
80
B
18
C
1
D
2
3) The thermocline is the boundary between layers of water with differeing _________
A
colors
B
organisms
C
none of the answers are correct
D
temperatures
4) Particles in water _________ light, and water ___________ light, turning it into heat
A
absorb and scatter, absorbs
B
generates, magnifies
5) The ________ zone is the area of the ocean that sunlight never reaches
A
aphotic
B
euphotic
C
photic
D
dysphotic
6) The advantage of ocean based life over land based life, with respect to temperature, is that the coolnes of the water makes the organisms live longer
A
false
B
true
7) A _____________ is an organisms with an internal temperature the same as or close to the surrounding sea water's temperature
A
endotherm
B
ectotherm
C
homeotherm
8) The advantage to being an endotherm is
A
it keeps the metabolic rate the same
B
it requires a smaller food source
9) Sound travels through water ____________ in air
A
about a fourth as fast as
B
about twice as fast as
C
about half as fast as
D
about five times as fast as
10) Hydrostatic pressure has a/an __________effect on marine organisms. This is because the pressure inside their tissues is ___________ the surrounding pressure
A
insignificant, equal to
B
significant, greater than
C
significant, less than
D
insignificant, greater than
*select an answer for all questions
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