1. 7.5 On the Origin of Species Pages 304-307

2. Charles Darwin On the origin of Species published in 1859.

3. Natural Selection The environment favouring the reproductive success of some individuals over others.

4. Observations Individuals produce numerous offspring Populations are stable Limiting factors exist ex. food Variability exists Traits are inherited

5. Inferences Individuals within a population compete for resources. Some individuals will inherit characteristics that give them a better chance of surviving and reproducing.

6. Theory of Natural Selection Over time the population changes as advantageous heritable characteristics become more common generation after generation.

7. Survival of the fittest Reproductive success The one with the most grandchildren wins!

8. Adaptation Something that helps an organism survive or reproduce successfully.