Biology · Paper 2 · Foundation + Higher · B5
A reflex is a rapid, automatic response. It does not require the conscious part of the brain to decide first. For example, withdrawing a hand from a harmful stimulus reduces damage. The brain can still receive information about what happened.
No timer. Read the explanation after each answer.
Daily 5 · Exam practice · Revision sheet ↓
Foundation + Higher · B5. Nine core lessons, followed by four labelled Higher Tier lessons.
AQA Combined Science Trilogy 8464 · 4.5.2. Original notes, questions and diagrams. Models are simplified; teaching data are illustrative.