GCSE Biology (AQA)

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Incomplete Fossil Record

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Inheritance, Variation and Evolution The Development of Understanding of Gentics and Evolution

Incomplete Fossil Record

1:51 Evidence for Evolution
Spec 4.6.3.5
Previous The Fossil Record Next Charles Darwin
  • The fossil record consists of all fossils found so far.
  • The fossil record is incomplete, with many gaps and missing data.
  • Reasons for gaps include undiscovered fossils buried underground or underwater.
  • Early life forms likely included soft-bodied organisms like sponges or comb jellies, leaving limited fossil evidence.
  • Geological activities such as earthquakes and volcanic activity have destroyed many early life traces.
  • Not all organisms were in conditions favorable for fossilization; many decayed or were not covered in silt for preservation.
  • The incomplete fossil record makes it uncertain how life on Earth began, with ongoing evidence collection needed to understand the origins of life.

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