Test: 3rd Grade Science

1.

A population of dark-colored moths moves into an area with light-colored moths. The area has lots of birch trees. The dark-moths stand out against the white and grey trees. More dark moths are eaten by predators than light moths. Only moths that live to reproduction age will produce offspring.

Which moth or moths has the advantage because of their traits to get the change of reproducing?

Trees, Birch, White, Trunk, Forest

Light-colored moth; This moth has a better chance of reproducing because more of them will survive to the age of mating.

Both moths; The light and dark moths will both have an equal chance of reproducing, and neither has an advantage over the other.

Dark-colored moth; This moth has a better chance of reproducing because more of them will survive to the age of mating.

Neither; The light-colored and dark-colored moths have no advantage of getting to reproduce, and neither will reach the age of mating.

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