1773094
Descrição
Mapa Mental por jojo.parker789, atualizado more than 1 year ago
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Criado por jojo.parker789
quase 10 anos atrás
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Communication
- Multicellular organisms need to respond to stimuli
externally and internally, caused by a change in it's
environment.
- Homeostatis
- The maintenance of a constant internal
environment despite external changes.
- The maintenance of a constant internal
environment despite external changes.
- A good communication system will:
- Cover the whole body
- Enable cells to communicate with each other
- Enable rapid communication
- Enable short and long term responses
- Cells communicate with each other via Cell Signalling
- How receptors communicate with effectors.
Can be done via:
- Nervous system
- Hormonal system
- Nervous system
- How receptors communicate with effectors.
Can be done via:
- Cover the whole body
- Negative Feedback
- A process in which any change in a parameter brings
about the reversal of that change so that the parameter
is kept fairly constant.
- A process in which any change in a parameter brings
about the reversal of that change so that the parameter
is kept fairly constant.
- Positive Feedback
- A process in which any change in a parameter
brings about an increase in that change
- A process in which any change in a parameter
brings about an increase in that change
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