4 Written questions
4 Multiple choice questions
- If...Then statement that is testable.
- Survives by stealing energy off another animal
- First life was unicellular, did not need oxygen, were consumers, and lived in oceans. Formed by chemical units.
- Occurs after a disturbance in an already existing ecosystem. First species to appear are weeds/grasses.
3 True/False questions
Water Cycle → Driven by the sun. Changes from liquid to gas to liquid again.
Nitrogen Fixation → Free nitrogen can not be used so it has to become fixed. Bacteria perfoms this function.
Food Web → A food web has multiple (many) paths in which energy flows in an ecosystem. The arrow points in the direction energy goes!