3. Choose the best answer.

, an evolution mechanism, works better in populations not divided by physical barriers.
Speciation
Gene pool
Genetic drift
Gene flow

What best describes the structure of the declaration of independence?

Define adaptation. why do organisms adapt? give an example.

Trees with light brown bark dominate an ecosystem the ecosystem has populations of insects that thrive on the tree bark over time some insect species developed certain physical characteristics that them thrive on the tree bark these physical characteristics also the insects defend themselves from predators which insect species is probaly the species with the new physical characteristics?