Evidence for evolution (e)

Question 1

What is evolution?

Answer 1

The theory that describes the way in which organisms evolve over many years as a result of natural selection.

Question 2

How does evolution occur?

Answer 2

• organisms best suited to their environment are more likely to survive and reproduce, passing on their characteristics to offspring
• gradually a species change over time to have a more advantageous phenotype for the environment in which it lives
• advantageous characteristics are passed on from generations by genes in DNA molecules