Energy pyramids archaracteristic of ecosystems because
A) not all of what is eaten is absorbed by a consumer.
B) not all of what is killed is eaten by a predator.
C) not all of what is produced in one trophic level is consumed by organisms in the next highest trophic level.
D) not all of what is eaten is absorbed by a consumer, and not all of what is killed is eaten by a predator.
E) not all of what is eaten is absorbed by a consumer, not all of what is killed is eaten by a predator, and not all of what is produced in one trophic level is consumed by organisms in the next highest trophic level.
Correct Answer:
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Q83: Thphosphorus moving into foowebs is originally obtainefrom
A)soil
Q84: Energy flow in an ecosysteis
A)cyclical.
B)one-way.
C)two-way.
D)reversible under different
Q85: Which of thfollowing does NOT cyclthrough an
Q86: Thgreatest concentration of nitrogen on earth is
Q87: Which plants argrown to increasthamount of nitrogen
Q89: Most of thcarbon now present in thearth's
Q90: Thchemical elements that aravailablto producers arusually in
Q91: Air pollution
A)reduces visibility.
B)corrodes buildings.
C)causes various human diseases.
D)damages
Q92: Which of thfollowing statements is FALSE?
A)Ecologist use
Q93: Which of thfollowing is not a greenhousgas?
A)methane
B)oxygen
C)carbon
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