4 Written Questions
4 Multiple Choice Questions
- Occurs after a disturbance in an already existing ecosystem. First species to appear are weeds/grasses.
- Occurs where no previous ecosystem existed. First species to appear are lichens and mosses.
- Animal that eats prey
- Eats animals that are already dead.
3 True/False Questions
Food Web → A food web has multiple (many) paths in which energy flows in an ecosystem. The arrow points in the direction energy goes!
Origin of Life → First life was unicellular, did not need oxygen, were consumers, and lived in oceans. Formed by chemical units.
Nitrogen Fixation → Free nitrogen can not be used so it has to become fixed. Bacteria perfoms this function.