2.76 Sensitivity

New Topic: Coordination and Response

2.76 understand that organisms are able to respond to changes in their environment

MRS GREN: S = Sensitivity

Changes in environment (stimuli):

• Light levels
• Temperature
• Pressure levels
• Chemical

In order to detect these changes, organisms must have receptors, and in order to respond to these changes in the environment organisms have effectors such as muscles and glands.