| A | B |
|---|
| Abiotic | Nonliving parts of an ecosystem |
| Autotroph | Makes food by photosynthesis: A plant |
| Biodiversity | A variety of organisms in an area |
| Biotic | Living parts of an ecosystem |
| Carnivore | Meat eater: A predator: Top of the food pyramid |
| Carrying Capacity | How many of a certain organism an ecosystem can support |
| Community | All the different species living in an ecosystem |
| Competition | The struggle between organisms for limited resources: Food, Water, Mate, Home |
| Consumer | Any organism that must eat other organisms |
| Decomposer | Recycles materials in the environment: Fungi and Bacteria |
| Ecology | Study of how living things interact with each other and their environment |
| Niche | The role an organism has in the environment |
| Succession | Process by which an ecological community is replaced by a new one: Grass to Bushes to climax forest |
| Ecosystem | All the living and nonliving things in an environment |
| Energy pyramid | Shows how food energy moves through an ecosystem |
| Habitat | Place where a plant or animal lives |
| Herbivore | Plant eater and a primary consumer |
| Heterotroph | Must find food to eat |
| Host | What a parisite lives on |
| Limiting Factor | Any environmental condition which can limit the size of a population: Water, Oxygen, Food |
| Parisite | Harms the organism that it lives on |
| Population | All the members of a species living in an area |
| Predator | Hunts for food |
| Prey | Gets eaten by a predator |
| Producer | Makes food for other organisms to eat: A plant |
| Scavenger | Finds dead animals to eat: Hyena, vulture |
| Food pyramid |  |
