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Ecology Vocab.
| Question | Answer |
|---|---|
| Biosphere | The part of Earth where life exists |
| Biome | A large region characterized by a specific type of climate and certain types of plant and animal communities |
| Ecosystem | A community of organisms and their abiotic environment |
| Community | A group of various species that live in the same habitat and interact with each other |
| Population | A group of organisms of the same species that live in a specific geographical area and interbreed |
| Species | A group of orgaisms that are closely related and can mate to produce fertile offspring |
| Habitat | The place where an organism usually lives |
| Niche | The unique position occupied by a species |
| Biotic factor | An environmental factor that's associated with or results from the activities of living organisms (living factor) |
| Abiotic factor | An environmental factor that's not associated with the activities of living organisms (nonliving factor) |
| Food Chain | The pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms |
| Food Web | A diagram that shows the feeding relationships among organisms in an ecosystem |
| Parasitism | A relationship in which one individual is harmed while the other individual benefits. Ex: Lice on humans |
| Mutualism | A relationship in which both organisms derive some benefit. Ex: Oxpecker and zebra |
| Commensalism | A relationship in which one organism benefits, but the other organism in neither helped nor harmed. Ex: Barnacles on whales |
| Competition | A close, long-term relationship between two organisms. Ex: Polar bears fighting for food |
| Exponential Growth | Under ideal conditions, a population will grow exponentially |
| Logistic Growth | When a population's growth slows/stops following a period of exponential growth |
| Carrying Capacity | The maximum population size that an environment can support over a long period of time |
| Ecological Succession | A gradual process of change and replacement in a community |
| Primary Succession | Has not supported life before |
| Secondary Succession | Has supported life beofore |
| Density Dependent Factor | A variable affected by the number of organisms present in a given day |
| Density Independent Factor | A variable that affects a population regardless of the population density, such as climate |
| Climax Community | A community after ecological succession that has reached a generally stable state |
| Mimicry | A defense in which one organism resembles another that is dangerous or poisonous |
Created by:
archergirl
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