Name______________________________

Period_____

6.5 Guided Reading

Origin of Species

As you carefully read through the text, answer the following questions as completely as possible!

The Origin of Species

1. The creation of new species is called ____________________.

2. New species develop naturally through the process of ______________ _________________.

3. Explain how natural selection drives evolution.

4. As new changes in the DNA sequence are constantly being generated in a population’s gene pool, some of these changes will be ______________________ and result in traits that allow adaptation and _______________________.

Sexual Selection

5. Instead of animals changing to better adapt to their surrounding environment, animals are better adapted to securing a ___________________.

6. Explain while the male peacock has such elaborate feathers.

7. List several examples of sexual selection.

Selective Breeding

8. Explain how selective breeding works.

9. Describe how farmers use selective breeding on milk cows.