Question

What is evolution?

Answer 1

In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.

• The theory of evolution is based on the idea that all species are related and gradually change over time.
• Evolution relies on there being genetic variation in a population which affects the physical characteristics (phenotype) of an organism.
• Some of these characteristics may give the individual an advantage over other individuals which they can then pass on to their offspring.