Evolution of Life – Ancient Earth – Quiz

1. While carbon dioxide is absorbed by the autotrophs oxygen is released as a byproduct in a process called photosynthesis.

2. Aerobes used oxygen, which was beginning to accumulate from the photosynthetic activity of autotrophs, as a reactant during chemical energy synthesis.

3. The competition occurring between same species is called interspecific.

4. One of the most notable events in the origins of life is the emergence of early protists that possessed the genetic material in their nucleus.

5. Natural selection is one of the reasons that led to the diversification of organisms.