<u><em>Genetic variation</em></u> occurs because beneficial traits exist in a collection of genes, and <u><em>gene flow</em></u> makes these traits more prevalent in populations.
Explanation:
In biology, genetic variation can be described as the different genotypes which occur in species of the same kind. This genetic variation allows those organisms to survive on Earth which are better adapted to survive to the environmental changes.
The organisms which are better adapted to live in an environment will reproduce and pass their traits to the offsprings. Over time, these traits will become more prevalent in a population.
The only living thing that makes its own food is the plant. So the first step in a food chain is always a plant that makes its own food by sun. :))) I hope this is helpful have a nice day
because the flytraps evolved and adapted to eating insects in order to survive and its part of their niche to keep the insect population at a gradual rate
