2.76

objective 2.76 - understand that organisms are able to respond to changes in their environment
in MRS GREN the S stands for Sensitivity. which is how organisms respond to changes in their environment

changes in environment are changes in - light, temperature, pressure levels and chemical levels.
1 organisms detect changes with receptors
2 organisms respond to these changers with 'effectors' (muscles and glands)
it is the response which ensures the survival of the organism.