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Pre-Test
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1
Match the trophic level in a food chain on the left with the appropriate description on the right.

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A)i = c; ii = b; iii = a
B)i = b; ii = a; iii = c
C)i = b; ii = c; iii = a
D)i = a; ii = c; iii = b
E)i = a; ii = b; iii = c
2
The amount of energy available to primary consumers is most accurately referred to as
A)heterotrophic accessibility.
B)ecosystem biomass.
C)global photosynthetic yield.
D)gross primary production.
E)net primary production.
3
Which of the following influence primary production in terrestrial ecosystems?
A)Water
B)Temperature
C)Nutrients
D)Water and nutrients
E)Water, temperature, and nutrients
4
Which of the following components of the nitrogen cycle is NH3 and/or NH4 converted to nitrate (NO3−)?
A)Nitrification
B)Nitrogen fixation
C)Ammonification
D)Denitrification
E)Assimilation





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