Describe the brain as an organ made of billions of interconnected neurones that controls complex behaviour.

In the subtopic The brain (biology only), this learning objective focuses on describe the brain as an organ made of billions of interconnected neurones that controls complex behaviour. Within The human nervous system, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include brain, complex behaviour, and neurones. neurones means specialized cells that transmit nerve impulses, forming the basic building blocks of the nervous system. Avoid students often describe the brain as a single entity without acknowledging its complex structure made of billions of interconnected neurones; instead emphasize the importance of understanding the brain's structure, focusing on how billions of interconnected neurones work together to control complex behaviours. For exam answers, create a diagram of the brain highlighting the interconnected neurones and their functions in controlling behaviour.