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25 Cards in this Set
- Front
- Back
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Ecology
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The study of how organisms interact with each other and their enviroment.
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Stimulus
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causes a change
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Response
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ceaction
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Homeostasis
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mantaining stable conditions.
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Population density
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the amount of individuals in a specific area.
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Ecosystem Factors
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all the living and nonliving parts
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biotic factors
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the living parts of an ecosystem.
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abiotic factors
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the nonliving parts of an ecosystem.
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Habitat
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The place where an organism lives and provides the things the organism needs.
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Niche
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An organism's role in their environment.
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Producers
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an organism that can make its own food. Green plants are the producers of food which is used driectly or indrectly by consumers.
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cell wall
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on outside of plant cells that give support/protection to plant.
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cell membrane
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on inside of cell wall and allow materials in / out of cell.
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chlorophyll
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green pigment in chloraplasts.
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chloroplasts
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capture sunlight energy and use it to make food (glucose).
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Photosynthesis
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cells capture energy from sunlight and use it to make their own food.
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consumers
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an organism that cannot make its own food and eats other organisms.
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herbivore
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organisms that eat only plants.
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carnivore
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organisms that eat only other animals (meat).
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omnivore
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orgamisms that eat both plants and animals (meat).
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scavengers
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a carnivore that feeds on the bodies of dead organisms.
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Decomposers
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organisms that break down dead organisms and return raw materials to the environment.
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Food chains
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A series of events in which one organisms eats another and obtains energy.
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Nitrogen cycle
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nitrogen gas is changed to a usable form of nitrogen.
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carbon cycle
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producers use carbon from carbon dioxide to produce other carbon containing molecules.
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