2.14.1 Understand how organisms are able to respond to changes in their environment
2.14.2 Understand that homeostasis is the maintenance of a constant internal environment, and that body water content and body temperature are both examples of homeostasis
2.14.3 Understand that a co-ordinated response requires a stimulus, a receptor and an effector
2.14.4 Understand that plants respond to stimuli
2.14.5 Describe the geotropic and phototropic responses of roots and stems
2.14.6 Understand the role of auxin in the phototropic response of stems
