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Fieldman SR
Science review
| Term | Definition |
|---|---|
| trophic levels | comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy. |
| population | all the members on one species of a particular area |
| community | all the populations in an area |
| estuary | the tidal mouth of a large river |
| limiting factors | resources are environmental conditions that limit the growth |
| commensalism | an association between two organisms in which one benefits and the other derives neither benefit nor harm |
| invasive species | organisms that are not native |
| food web | a system of interlocking and interdependent food chains |
| pyramid of numbers | The number of organisms in a food chain can be represented graphically in a pyramid |
| biomass | organic material that comes from plants and animals |
| exponential growth | growth whose rate becomes ever more rapid in proportion to the growing total number or size |
| symbiosis | interaction between two different organisms living in close physical association |
| adaptation | the action or process of adapting or being adapted |
| dependent variable | whose value depends on that of another |
| habitat fragmentation | process by which habitat loss results in the division of large, continuous habitats into smaller, more isolated remnants |