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Ch 15 2/2
Test Description: Ch 15
Instructions: Answer all questions to get your test result.
1) Which of the following properties most determines water's vertical position in the ocean?
A
organic content
B
oxygen content
C
density
D
velocity
2) Organisms that drift with cean currents are called
A
photic
B
benthos
C
plankton
D
nekton
3) What term describes organisms that live on or in the ocean floor
A
benthos
B
plankton
C
pelagic
D
nekton
4) Nekton include all animals that
A
drift with the current
B
move independently of the currents
C
live at the ocean bottom
D
live in land and on water
5) What is true about the deepest part of the ocean floor
A
nekton are more common that benthos
B
temperatures are moderately high
C
algae thrive
D
animal live in constant darkness
6) The open ocean of any depth is the
A
neritic zone
B
abysal zone
C
pelagic zone
D
benthiczone
7) What factors influence a region's photosynthetic productivity?
A
salinity and sunlight
B
nutrients and sunlight
C
sunlight and depth
D
temperature and density
8) Which term best describes energy transfer between trophic levels
A
high
B
ineffecient
C
effecient
D
average
9) A food chain is the passage of energy
A
along a single path
B
between primary producers
C
among many interactive organisms
D
between herbivores only
10) Where would a primary producer be located in a food chain?
A
first step
B
each step
C
middle step
D
last step
*select an answer for all questions
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