Question

apply the concept of natural selecti to a population of birds flock x flock y flock z the birds shown above have beaks with three different shapes and sizes. these genetic variations in the beak each appeared initially due to environmental factors. mutations. natural disaster. conscious choice by the birds. intro 4 of 7

Explanation:

Genetic variations in organisms, such as the different beak shapes and sizes in birds, initially occur due to mutations. Mutations are changes in the DNA sequence. Environmental factors can act on these pre - existing genetic variations (through natural selection), but they do not cause the initial variation. A natural disaster is an environmental event that can affect a population but not the source of genetic variation. Birds (or any non - human, non - sentient species in this context) do not make conscious choices about their genetic traits.

Answer:

mutations.