| A | B |
|---|
| Ecology | The study of all the interactions between organisms and their environment. |
| Biosphere | The life supporting area of Earth composed of air, land, fresh, and saltwater. |
| Ecosystem | Populations in s community and all the abiotic factors with which they interact. |
| Biome | Large areas that have the same type of climate, rainfall, and altitude and are found all over the world. |
| Community | Several populations that inhabit the same ecosystem. |
| Biotic Factors | All of the living things in the environment. |
| Abiotic Factors | All the non-living parts of the environment. |
| Population | Interbreeding individuals of a species that compete for food and mates and live in the same area at the same time. |
| Autotrophs | Organsims that are able to produce their own energy using sunlight |
| Heterotrophs | Organism that rely on other organisms to obtain energy |
| Carrying Capacity | The maximum population that an area can support. |
| Carnivore | Organsims that only eat heterotrophs. |
| Ominvore | Organisms that eat heterotrophs and autotrophs. |
| Herbivore | Organsims that eat only autotrophs |
| Decomposers | Organsims like bacteria or fungi that break down dead organism and return nutrients to the soil. |
| Density Independent Factors | Things that occur in nature that affect the size of a population. |
| Density Dependent Factors | Things like food and water that affect a population's ability to survive. |
