Natural Selection

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When a farmer breeds only his or her best livestock, the process involved is

When lions prey on a herd of antilopes, some antelopes are killed and some escape. Which part of Darwin's concept of natural selection migh be used to describe this situation?

According to Darwin's theory of natural selection, individuals who survive are the ones best adapted for their environment. Their survival is due to the

What is the movement of genes into and out of a gene pool called?

Which of the following is biochemical evidence for evolution?

Darwin noticed that many organisms seemed well suited to

Upon close examination of the skeleton of an adult python, a pelvic girdle and leg bones can be observed. These features are an example of ______.

The theory of continental drift hypothesizes that Africa and South America slowly drifted apart after once being a single landmass. The monkeys on the two continents, although similar, show numerous genetic differences. Which factor is probably the