Here, we have a collection of videos and experiments that are suitable for Biology. How organisms are able to respond to changes in their environment: homeostasis, stimulus, receptor and effector?
2.77 Understand that organisms are able to respond to changes in their environment.
2.78 Understand that homeostasis is the maintenance of a constant internal environment and that body water content and body temperature are both examples of homeostasis.
2.79 Understand that a coordinated response requires a stimulus, a receptor and an effector.
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