Monday, January 23, 2012

2.76 Sensitivity

--> MRS GREN
S = sensitivity - the part where organisms respond to changes in the environment
Stimuli =
--> Light
--> pressure
--> Temperature
--> Chemical
- in order to be able to detect the changes in the environment, organisms have receptors
--> the sensory nerve
- in order to respond to the changes, organisms have effectors, like muscles and glands
- response ensures that the organism is able to survive the changes of the environment

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