An organism's "trophic level" refers to . See Concept 54.2 (Page 1221)
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the rate at which it uses energy
the intensity of its competition with other species
its food source
whether it is early or late in ecological succession
where it lives

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

Isotopes of the same element have differ in their