| A | B |
| Scavenger | an organism that feeds on dead and decaying organisms |
| Parasite | an organism that feeds off of another organism but does not kill it |
| Carnivore | organism that eats meat |
| Herbivore | organism that eats plants |
| Insectivore | organism that eats insects |
| Decomposer | organism that breaks dead organisms into nutrients and CO2 |
| Consumer | organism that gets its energy from other organisms |
| Producer | organism that gets its energy from the sun |
| Niche | an organism's role in its habitat |
| Food web | shows all possible eating patterns in a habitat |
| Food chain | shows eating patterns of only a few organisms |
| ecosystem | interaction between living and nonliving things in a specific environment |
| wetland | an example of an ecosystem |
| co2, o2, water, wastes, nutrients, temperature, space, light | examples of nonliving things in an ecosystem |
| organisms (plants & animals) | examples of living things in an ecosystem |
| predator | organism that hunts other organisms for food/energy |
| prey | organism that gets hunted by other organisms |
| sunlight | main source of energy for all living things |
| omnivore | organism that eats both meat and plants |