Which ecological principle is best illustrated by
the diagram below?
(1) In an ecosystem, mat...
Which ecological principle is best illustrated by
the diagram below?
(1) In an ecosystem, material is cycled among
the organisms and the environment.
(2) In an ecosystem, the number of producers
and consumers is equal.
(3) Competition within a species results in
natural selection.
(4) An ecosystem requires a constant source of
energy.
Answers: 1
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