AQA · GCSE · Combined Science
Course version: 8464 · Version from Sept 2018
Adaptations: Students should be able to explain how organisms are adapted to live in their natural environment, given appropriate information.
An adaptation is a feature that increases an organism's chance of survival and reproduction in its environment.
Study notes
From the checked teaching notes for this specification point.
The idea
An adaptation is a feature that increases an organism's chance of survival and reproduction in its environment. Adaptations may be structural, such as a camel's hump storing fat; behavioural, such as migration; or functional, such as reduced water loss through leaves. To explain an adaptation, name the feature, state the advantage it gives and link it to survival or reproduction in that habitat. For example, a polar bear's thick fur reduces heat loss, so it stays warm in Arctic conditions and can hunt. Given information, select the relevant adaptation and explain its benefit rather than simply describing it. Consider how the adaptation helps the organism compete for resources or avoid predators and disease.
What earns the marks
- Name the adaptation and classify it as structural, behavioural or functional where appropriate.
- State the advantage the adaptation provides in the named environment.
- Link the advantage to survival or reproduction, such as obtaining food, avoiding predators or attracting a mate.
- Use the information provided to select relevant adaptations rather than listing unrelated ones.
- Explain the mechanism, for example how a feature reduces heat loss or increases water uptake.
- Compare organisms in different environments to show how adaptations suit particular conditions.
Common mistakes and how to put them right
Describing the adaptation without explaining its advantage.
Put it right by adding how it helps the organism survive or reproduce.
Confusing structural and behavioural adaptations.
Put it right by checking whether the feature is a body part or an action.
Giving a generic advantage that could apply anywhere.
Put it right by linking the advantage to the specific named environment.
Exam tips
- Use the structure: feature, advantage, survival or reproduction benefit.
- Refer explicitly to the environment named in the question to keep the explanation relevant.
- If given information, quote or paraphrase the relevant detail to show you have used it.
Try the lesson
The start of the Adaptations: Students should be able to explain how organisms are adapted to live in their natural environment, given appropriate information. lesson, made from checked teaching notes for this specification point.
Have a go first
A desert fox has very large ears. Explain how this feature helps the fox to live in a hot desert.
See it
Label the diagram
Some boxes have lost their names. Pick the right name for each number.
1Box 1
2Box 2
3Box 3
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