Fill in the blank.

Darwin observed that finches’ were specialized according to their unique environments.
Hutton contributed to Darwin’s ideas through his work on , the idea that geological processes are relatively constant over time, and don't change significantly.
Malthus’ ideas regarding supply and demand influenced Darwin because limited natural resources force individuals to with each other, and not every individual will have the opportunity to reproduce.

1. beaks

2. uniformitarianism

3. competition

4. Hutton was the first scientist to propose that the earth is several million years older than originally believed.

5. Nature is really good at establishing measures of population control when the demand for resources outstrips the supply. Disease and starvation increase to help reduce or limit the population.

6. Darwin applied the concept of uniformitarianism to biology and natural selection through a focus on constant small changes.

7. This suggests that round-winged flies are more fit in their local environment.

8. The geological processes responsible for changes in the earth several million years ago are similar to the geological processes changing the earth now, often in ways not immediately apparent. This is known as uniformitarianism.

Explanation: