2. Biologist study the interactions of living things with other living things and their environments. Biologist study the interactions of living things with other living things and their environments. – Zoologist – Botanist – Ichthyologist – Entomologist – Ecologist

3. The study of life ranges from very simple single celled organisms To extremely complex multi-cellular organisms!

4. All living things, no matter how different they are from one another share 8 common characteristics.

8. This occurs within an individual’s lifetime.

12. This occurs over many generations over a very long period of time.