NSES Content Standard C
Life Science: The behavior of organisms Grades 9-12, page 187 Organisms have behavioral responses to internal changes and to external
stimuli. Responses to external stimuli can result from interactions with
the organism's own species and others, as well as environmental changes;
these responses can either be innate or learned. The broad patterns of
behavior exhibited by animals have evolved to ensure reproductive success.
Animals often live in unpredictable environments, and so their behavior
must be flexible enough to deal with uncertainty and change. Plants also
respond to stimuli.
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