Communication
Communication
- Created by: Sruthy
- Created on: 14-02-14 17:46
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- Communication
- the need for a communication system
- Organisms must be able to respond to changes in their internal and external environments.
- Cell Signalling
- Examples include nervous and hormonal
- Negative Feedback
- A process that brings about a reversal of any change in conditions. Ensures optimum state is maintained. Essential for Homeostasis.
- Positive Feedback
- A process that increases any change detected by the receptors.
- Define Homeostasis
- The maintenance of the internal environment in a constant state despite external changes.
- the need for a communication system
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