Which term best describes the difference in colors of the birds below?

4 birds are shown. one has light brown feathers with darker wings. one has very dark feathers with lighter wings. another has medium brown feathers with light wings. the last one has medium brown feathers with very dark wings.
natural selection
reproductive maturity
genetic variation
genetic drift

The correct option is C) genetic variation

Explanation:

Genetic variation can be described as the differences present in the genetic material i.e DNA of organisms present in a population. Genetic diversity allows organisms of a species to better adapt to an environment. A population in which the genetic variability is scarce might become wiped out by a disease or an invading predator.

As the birds show different variations hence the term that best described them is genetic variation.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.