Key term for OCR GCSE Biology B, used in Interdependence in Ecosystems.
The fine respiratory tubes in insects where gas exchange takes place directly with the cells.
Tracheoles appears in OCR GCSE Biology B revision content for Ecosystems and Photosynthesis, especially Interdependence in Ecosystems and Transport in Organisms.
Create a free account to access OCR GCSE Biology B revision notes, track progress, and practise related key terms.