Behaviour - GCSE Biology Definition

Behaviour refers to the way an organism responds to different stimuli in its environment. It encompasses all actions and reactions, whether voluntary or involuntary, that occur in response to internal or external cues. Behaviour can include a wide range of activities, from simple reflexes, like blinking or flinching, to more complex actions such as mating rituals or predator avoidance strategies. GCSE Biology students study behaviour to understand how organisms survive, reproduce, and interact with each other and their habitats, highlighting the adaptive processes that have evolved over time.