It took millions of years for giraffes to develop long necks. Slow evolution is called:

Which of these species is not extinct?

The peppered moth's color camouflaged it on the light colored tree bark. It's color was an example of a/n

The peppered moth's color camouflaged it on the light colored tree bark. It's color was an example of a/n

What animal is camouflaged in this picture?

Where are hereditary traits stored in all organisms?

If a sick person takes an antibiotic but it doesn't kill all of the bacteria causing the sickness, what might explain this?

On the Galapagos Islands, different finches evolved on different islands to fit their environment. When a species develops unique traits because it is trapped in one area this is called:

Which beak is probably best suited to crack open nuts?

One female salmon can lay hundreds of eggs. Why doesn't the salmon population increase dramatically?

Most permanent mutations are:

Another term for Natural Selection is:

Gradualism means Natural Selection would normally happen over many generations and very

Genetic diversity in a species makes long term survival of some members

Over the years, white mice became extinct and darker mice survived. This is

The special niche occupied by a particular species is called a

Two populations of the same species are separated by land barriers like rivers or mountains.

Two populations of the same species do not have the same mating rituals or signals.

All the possible gene combinations in a population.

The frequency that single genes (alleles) for a trait appear in a population.

Changes in the gene pool over time.

Isolated small populations speed up genetic drift.

Organisms of the same species can no longer interbreed therefore creating two species.

Severe population reduction reduces the gene pool

and increases the rate of genetic drift. Woolly mammoths became extinct. Elephants survived.