Topic: 3.6 Organisms respond to changes in their internal and external environments | BIOLOGY Y2 | GoL

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3.6 Organisms respond to changes in their internal and external environments

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3.6.1 Stimuli, both internal and external are detected and lead to a response.

3.6.2 Nervous coordination.

3.6.3 Skeletal muscles are stimulated to contract by nerves and act as effectors.

3.6.4 Homeostasis is the maintenance of a stable internal environment.
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