Unit 3 Biology 0.0 / 5 ? ScienceBiologyGCSEOCR Created by: ImranCreated on: 25-04-13 17:24 Species can adapt to their environment to make them more likely to survive E.g. A polar has white fur inn order to keep camouflaged from their prey. They also have thick fur to keep warm. 1 of 6 Individuals from the same species can have variations One cause of this is a mutation in the DNA, this creates new characteristics 2 of 6 Living things show genetic variation so they are not all the same Living organisms must compete for limited resources so it's the survival of the fittest 3 of 6 Life on Earth began around 3500 million years ago The first organism was very simple but as time went on it became more complex 4 of 6 Evolution can produce new species Some species can interbreed creating a new line of DNA 5 of 6 Evidence for Evolution include: 1) Fossil records show changes between two of the same species (More complex over time) 6 of 6
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