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

      A flowchart with two parts. The first part starts at a node labelled Adaptation, which branches into three nodes: Structural, Behavioural and Functional. Structural leads to a node reading Camel's hump storing fat; Behavioural leads to a node reading Migration; Functional leads to a node reading Reduced water loss through leaves. The second part is a sequence starting at a node labelled Explain an adaptation, which leads to Name the feature, then to State the advantage, then to Link to survival or reproduction.
      It shows the three types of adaptation with an example of each, and the three steps for explaining an adaptation.

      Label the diagram

      Some boxes have lost their names. Pick the right name for each number.

      The diagram again, with 3 boxes numbered instead of named. A flowchart with two parts. The first part starts at a node labelled Adaptation, which branches into three nodes: Structural, Behavioural and Functional. Structural leads to a node reading Camel's hump storing fat; Behavioural leads to a node reading Migration; Functional leads to a node reading Reduced water loss through leaves. The second part is a sequence starting at a node labelled Explain an adaptation, which leads to Name the feature, then to State the advantage, then to Link to survival or reproduction.
      • 1Box 1

      • 2Box 2

      • 3Box 3

      0 of 3 labelled

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