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

Darwin noticed that many organisms seemed well suited to

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

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

Mutations occur because of ______.

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

Which list shows the words in correct order from simplest to most complex?

The formation of a new species as a result of evolution is called ?

The process in which populations gradually change over time in called?

Characteristics that help an organism survive and reproduce in its environment are called?

What is one of the main ways that a new species forms?

Differences between members of the same species are called?

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