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28 Cards in this Set
- Front
- Back
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What are Energy roles of an organism in an Eco system?
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Producer
Consumer Decomposer |
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What organism makes its own food and is source of food in an ecosystem?
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Producers
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What is an organism that obtains energy by feeding on other organisms?
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Consumers
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What are the consumers?
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Herbivores
Carnivores Omnivores Scavengers |
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Only eats plants
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Herbivore
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Only eats animals
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Carnivores
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Eats both plants and animals; all types of food
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Omnivores
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Feeds on dead organisms
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Scavengers
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Series of events where one organism eats another to obtain energy
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Food chain
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What consists of many overlapping food chains?
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Food web
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What shows the amount of energy that moves from one feeding level to another in a food web?
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Energy pyramids
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What is it called when matter or materials are reused?
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Recycling matter
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Can energy by recycled?
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No, it moves through an ecosystem.
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Continuous process by which water moves from earth's surface to the atmosphere and back
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Water cycle
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Process by which molecules of liquid absorb energy and change to gas
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Evaporation
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Process by which gas changes to liquid
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Condensation
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Water that falls to earth
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Precipitation
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Producers use carbon from carbon dioxide to produce other carbon containing molecules
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Carbon cycle
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Oxygen moving through the ecosystem
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Oxygen cycle
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Examples of carbon & oxygen cycles
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Photosynthesis & Respiration
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Organisms using nitrogen once it has been fixed or combined to form compounds
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Nitrogen cycle
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Process of changing free nitrogen gas into a usable form
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Nitrogen fixation
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Lumps containing bacteria that perform nitrogen fixation
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Nodules
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Nodules can be found on the roots of legumes, gives examples.
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Clover, beans, peas, alfalfa, & peanuts
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When decomposers return nitrogen compounds to the soil, bacteria breaks it down into free nitrogen & it is released into the atmosphere
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Return of nitrogen to the environment
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Very slow motion of the continents
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Continental drift
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Naturally evolved species in an area
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Native species
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Organism carried to a new area & is not native to the new area
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Exotic species
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