Term
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Definition
| nonliving factors in an ecosystem (ex. sunlight, water, air) |
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Term
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Definition
| the most common gas in Earth's atmosphere |
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Term
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Definition
| meat eaters - at or near the top of the food chain |
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Term
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Definition
| plant eaters - the second step of the food chain, just above producers |
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Term
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Definition
| plants or algae - the first step in a food chain |
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Term
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Definition
| living or once-living parts of an ecosystem |
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Term
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Definition
| decaying matter found in soil |
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Term
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Definition
| During photosynthesis, light energy becomes _______________. |
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Term
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Definition
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Term
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Definition
| a key ingredient of DNA and protein |
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Term
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Definition
| the beginning energy source for most life on Earth |
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Term
| legumes (beans, peas, peanuts) |
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Definition
| the type of plant that helps to add nitrogen to soil |
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Term
| compost, animal manure, chemical fertilizer, planting legumes |
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Definition
| ways to add nitrogen to soil |
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Term
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Definition
| when liquid water becomes a gas |
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Term
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Definition
| when water vapor becomes a liquid |
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Term
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Definition
| deep cracks in the ocean floor where chemosynthesis takes place |
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Term
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Definition
| the production of energy rich molecules (carboydrates)from chemicals |
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Term
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Definition
| a way of showing all possible feeding relationships in a community |
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Term
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Definition
| the amount of energy that gets transfered to each level of a an energy pyramid |
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Term
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Definition
| the two most adundant gases in the atmosphere |
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Term
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Definition
| when water becomes water vapor as it exits plant leaves |
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