| A | B |
|---|
| Non-living influences in an ecosystem | ABIOTIC FACTORS |
| Study of how organisms interact with the living and nonliving things that surround them | ECOLOGY |
| All the living things, such as bacteria, plants, and animals that interact with one another. | ECOSYSTEM |
| All the organisms of the same species that live in the same area | POPULATION |
| Different populations combine to form a | COMMUNITY |
| Specific environment where a species lives. | HABITAT |
| Organism that kills and eats another | PREDATOR |
| Organism that is killed and eaten by another | PREY |
| What kind of organisms are in the first level of the energy pyramid? | PRODUCERS |
| What kind of organisms are in the second level of the energy pyramid? | HERBIVORES (PRIMARY CONSUMER) |
| Another term given to all producers | AUTOTROPHS |
| 1 kcal equals | 1000 calories |
| A crab eats the fish that eats the plant. The crab here is a... | SECONDARY CONSUMER |
| These organisms recycle materials that can then be reused by producers | DECOMPOSERS |
| The amount of energy available from one energy level to the next. | 10 % Aproximately |
| unit of energy in energy pyramid | Kcal |
| Organisms that eat plants and animals | OMNIVORES |
