Performance Expectations: 3-LS4-3: Construct an argument with evidence that in a particular habitat some organisms can survive well, some survive less well, and some cannot survive at all.

Disciplinary Core Idea: LS4.C: For any particular environment, some kinds of organisms survive well, some survive less well, and some cannot survive at all. (3-LS4-3)

Cross cutting concepts: Cause and Effect

• Cause and effect relationships are routinely identified and used to explain change. (3-LS4-3)

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