Organisms and environments

6.12(B)

How Living Things Depend on Each Other

Describe and give examples of predatory, competitive, and symbiotic relationships between organisms, including mutualism, parasitism, and commensalism.

Part of The student knows that interdependence occurs between living systems and the environment

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Intro

Life on a Texas Pasture

Picture a Texas ranch pasture with cattle, white birds, deer, coyotes, bluebonnets, and bees. Every living thing here connects to the others. Scientists sort these connections into a few main types: predatory, competitive, and symbiotic relationships, including mutualism, parasitism, and commensalism.