| A | B |
|---|
| biosphere | The layer of the earth where life exists. |
| carrying capacity | The maximum number of species that an environment can support. |
| parasitism | A relationship between two organisms where 1 organism benefits while harming another. |
| ecosystem | An area where all the biotic and abiotic interact with each other. |
| producer | An organism that uses energy from the sun to create food. These organisms also produce oxygen as a waste product. |
| niche | An organisms role in an environment |
| ecology | The study of the environment and how all the living and non-living parts interact with each other. |
| consumer | Another name for a heterotroph. |
| population | All the organisms of the same species that live in a given area. |
| symbiosis | Two organisms living together |
| community | Many different populations interacting with each other. |
| mutualism | A relationship between two organisms where both organisms benefit. |
| habitat | The place where an organism lives. |
| commensalism | A relationship between two organisms where 1 organism benefits and the other is unharmed. |
| limiting factor | A part of the environment that limits the ability of a population to reproduce in large numbers. |
