20 6A.5 How to decide on the type of an adaptation (a quick method)
Ask: Is it a part of the body (structure)? → structural. Is it something the animal does (action)? → behavioural. Is it how a body system or cell works (function, chemistry)? → physiological. Many real adaptations are a combination.
1streamlined body, fins, gills
Type
- structural
2echolocation clicks, schooling, migration
Type
- behavioural (echolocation also uses structural organs)
3contractile vacuole, kidney regulation, antifreeze protein, high haemoglobin
Type
- physiological
4blubber, flexible ribs, blowhole
Type
- structural