Biology GCSE
Decay and preservation
What Decay and preservation means in Biology GCSE, as defined for AQA.
Definition of Decay and preservation
Check what you remember
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Reference: AQA
Soft tissue decays quickly due to bacterial action and is rarely replaced by minerals, so it seldom fossilises, while hard parts resist decay and are much more likely to be preserved.
Topics that use Decay and preservation
- Fossils (AQA GCSE)
Related terms
- Change over geological time
- Common ancestry
- Comparing fossil and living structures
- Conditions for decay
- Data handling skills
- Evidence and bias
- Evidence for evolution
- Geological processes
Using Decay and preservation in the exam
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