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OrganisationFoundationAdaptationsMimicry

AQA GCSE · Question 05.8 · Organisation

Animals also have adaptations to help them survive. A harmless hoverfly looks very similar to a wasp, which can sting.

Explain why animals avoid eating the hoverfly.

How to approach this question

1. First, state why animals avoid the dangerous animal (the wasp). What does the wasp do? 2. Then, explain how the appearance of the harmless animal (the hoverfly) gives it an advantage. How does its similarity to the wasp affect how other animals treat it?

Full Answer

This is an example of Batesian mimicry. 1. **Warning Colouration:** Wasps have a distinct black and yellow pattern. This is warning colouration (aposematism) that advertises to predators that they are dangerous and have a painful sting. Predators quickly learn to associate this pattern with a bad experience and avoid attacking wasps. 2. **Mimicry:** The hoverfly is harmless and has no sting, but it has evolved to have a very similar black and yellow pattern. Predators that have learned to avoid wasps will also avoid the hoverfly, mistaking it for a wasp. This mimicry provides the hoverfly with protection from predation, increasing its chances of survival.

Common mistakes

✗ Just stating "it looks like a wasp" without explaining the consequence.\n✗ Not mentioning that the wasp is dangerous or stings.

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