Question

describe an environmental factor that could influence natural selection and increase genetic diversity. pick a specific example to illustrate your point.

Explanation:

One environmental factor is habitat fragmentation. For example, when a large forest is divided into smaller patches (due to human activities like building roads), different sub - populations of a species (say, a bird species) are formed. Each patch may have slightly different selective pressures (e.g., different food sources available in each patch). Over time, natural selection acts on these sub - populations. In one patch, birds with longer beaks (for reaching a particular type of fruit) may be favored, while in another patch, birds with shorter, stronger beaks (for cracking nuts) may be selected. This can lead to genetic divergence among the sub - populations, increasing the overall genetic diversity of the species at a larger scale.

Answer:

Habitat fragmentation can influence natural selection and increase genetic diversity. For example, in fragmented forest habitats, different sub - populations of a bird species may face different selective pressures (e.g., different food sources), leading to genetic divergence and increased genetic diversity.