4 Written questions
4 Multiple choice questions
- Eats animals that are already dead.
- Occurs where no previous ecosystem existed. First species to appear are lichens and mosses.
- Occurs after a disturbance in an already existing ecosystem. First species to appear are weeds/grasses.
- Free nitrogen can not be used so it has to become fixed. Bacteria perfoms this function.
3 True/False questions
Prey → Animal that eats prey
Origin of Life → Driven by the sun. Changes from liquid to gas to liquid again.
Water Cycle → Survives by stealing energy off another animal