Get the Gizmo ready:

Question

Click Reset.
Select the DARK TREES tab.
Introduction: The 19th century was the time of the Industrial Revolution in England. Most of the new industries used coal for energy, and the air was polluted with black soot. In forests near factories, the soot coated trees and killed lichens. As a result, tree trunks became darker.

Experiment: Click Play and hunt peppered moths on dark tree trunks for five years. In each year, try to capture as many moths as you can.

Why did the changes you observed in the moth populations happen?

Select all that apply.

Question 3 options:

individual moths changed colors

the best-hidden moths survived an reproduced

the moths that survived passed their colors to their offspring

The moths became tastier to their predators

Answer 1

The correct options are:

- the best-hidden moths survived and reproduced
- the moths that survived passed their colors to their offspring