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24 Cards in this Set
- Front
- Back
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Autotrophs |
Organism uses photosynthesis to get energy |
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Heterotrophs |
Organism uses other organisms to get energy |
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Herbivores |
Organism eats plants |
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Secondary consumer |
Organism eats herbivores |
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Tertiary consumer |
Organism eats secondary consumers |
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Carnivore |
Organism eats organism |
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Omnivore |
Organism eats both plants & organisms |
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Main energy source on Earth |
Sun |
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Scavenger |
Organism eats dead/decaying organisms that it did not kill itself |
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Decomposer |
Organism eats dead organisms & plants & breaks them down into simpler molecules |
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Energy pyramid |
- More organisms at bottom - More energy at bottom (100%) - More biomass at bottom - 10% energy transfer from trophic level to trophic level, rest lost through heat |
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Biomass pyramid |
- More organisms at bottom - More energy at bottom (100%) - More biomass at bottom |
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Number pyramid |
- Imperfect pyramid |
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Trophic levels |
- Number of steps from sun - 10% of energy is passed from trophic level to trophic level |
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Laws of thermodynamics |
- Energy cannot be created or destroyed - Some energy is lost as heat |
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Food chain |
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Food web |
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Water cycle |
Evaporation: liquid from bodies of water to gas Transpiration: liquid from plants to gas Condensation: gas from clouds to liquid Precipitation: liquid to Earth Runoff: liquid from mountains to bodies of water Groundwater: water beneath the Earths surface |
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Carbon cycle |
Carbon source releases Carbon Carbon sink stores Carbon Plants take in carbon dioxide and water and make oxygen and sugar through photosynthesis Animals breath and so do humans cellular respiration |
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Nitrogen cycle |
the process of turning the nitrogen in the atmosphere into something that plants and animals can use |
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Oxygen cycle |
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System of the earth |
Closed (only energy transferred) |
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Human impacts |
- eutrophication - oilfields - pollution - climate change - deforestation - using ground water - fossil fuels |
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Cellular respiration |
Cells convert chemical energy stored in sugars into energy for cells to use |
