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Bio Ch. 2
Chapter 2 Vocabulary
| Question | Answer |
|---|---|
| Nonliving parts of an organism's environment; air currents,temperature moisture, light and soil are examples. | Abiotic factor |
| A community made up of interacting populations in a certain area at a certain time | Biological community |
| Portion of the Earth that supports life;extends from high in the atmosphere to the bottom of the oceans | Biosphere |
| All the living organisms that inhabit the environment | Biotic factor |
| Symbiotic relationship in which one species benefits and the other species is neither harmed nor benefited | Commensalism |
| Scientific study of interactions between organism and their environments | Ecology |
| Interactions among populations in community;the community's physical surroundings,or abiotic factors | Ecosystem |
| Place where organism lives out its life | Habitat |
| A symbiotic relationship in which both species benefit | Mutualism |
| Role or position has in it's environment;includes all biotic and abiotic interactions as an animal meets its needs for survival and reproduction | Niche |
| Symbiotic relationship in which one organism benefits at the expense of another, usually another species | Parasitism |
| A group of organisms of the same species which interbreed and live in the same place at the same time | Population |
| Permanent association between two or more organisms of different species | Symbiosis |
| Organisms that use energy from the sun,or energy stored in chemical compounds to manufacture their own nutrients | Autotroph |
| Total mass or weight of all living matter in a given area | Biomass |
| Organisms such as fungi and bacteria, then breakdown and absorb nutrients from dead organisms | Decomposer |
| Simple model that shows how matter and energy are moved through an ecosystem | Food chain |
| Model that shows the possible feeding relationship at each trophic level in a community | Food web |
| Organisms that cannot make their own food an must feed on other organism for other nutrients | Heterotroph |
| Organism that represents a feeding step in the movement of energy materials through an ecosystem | Trophic level |
Created by:
rburrier
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