what is genetic variation
the characteristics of individuals varying due to genes
explain competition between organism’s
when species compete for a lack of resources
what is natural selection
The natural process whereby the best-adapted individuals survive longer, have more offspring and thereby spread their characteristics. Sometimes referred to as ‘survival of the fittest’
What process does Darwin’s theory use to explain how evolution occurs?
natural selection
what does bacteria in a population show
it shows the variation to an antibiotic