Answer:
Kettlewell thought that if natural selection caused the change in the moth population, the following must be true: Heavily polluted forests will have mostly dark peppered moths. Clean forests will have mostly light peppered moths. Dark moths resting on light trees are more likely than light moths to be eaten by birds.
Answer:
Not 100% sure but I do think that its the kinetic energy. Hope this help you.
<em>I hand to look it up.. but everything said </em><em>kinetic energy.</em><em> Really hope this helps.</em>
Animal dander would be the answer you're looking for.
Hope this helps :)