Question

1. now, give an example of an evolutionary change in a realistic species on earth. one species of your choice to explain the \evolutionary changes\. name of species: explain the type of evolutionary/change(s) over time: (be specific) draw the species: use colors!

Explanation:

We will choose the pepper - moth (Biston betularia) as an example. Its evolution is well - known. Before the Industrial Revolution, the light - colored form was more common as it was camouflaged on lichen - covered trees. During the Industrial Revolution, pollution killed the lichens and darkened the tree trunks. The dark - colored form then had a survival advantage as it was better camouflaged, leading to an increase in its frequency in the population. This is an example of natural selection. For the drawing, one could draw both the light and dark forms of the pepper - moth on a tree trunk.

Answer:

Name of species: Pepper - moth (Biston betularia)
Type of evolutionary change: Natural selection. The change was from a higher frequency of light - colored moths to a higher frequency of dark - colored moths due to environmental changes (pollution) that affected camouflage and thus survival and reproduction.
Draw the species: Draw both light - colored and dark - colored pepper - moths on a tree trunk. Use colors to distinguish the two forms and the tree trunk background.