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21 Cards in this Set
- Front
- Back
chemosynthesis
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process in which producers make energy-rich nutrient molecules from minerals
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lichens
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type of fungus, usually first organism in primary succession
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succession
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natural, gradual changes in the types of species that live in an area
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elevation
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distance above sea level
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biotic
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features of the environment that are alive or were once alive
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abiotic
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nonliving physical features of tthe environment including air, water, soil, temperature, and climate
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tropic level
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??
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climate
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average weather conditions of an area overtime including wind, temperature and rainfall
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food web
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model that shows the complex feeding relationships among organisms in a community
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humus
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in soil, formed primarily by decayed remains of plants, animals, and animal droppings
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energy pyramid
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model that shows the amount of energy available at each feeding level in an ecosystem
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soil
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mixture of mineral and rock particles, the remains of dead organisms, & water that forms the top most layer of the Earth's crust & supports plant growth
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climax community
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stable, end stage of ecological succession in which the plants and animals of a community use resources efficiently
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pioneer species
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a group of hardy organisms such as lichens, found in the primary stage of succession and that begin an areas soil building process
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secondary succession
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a succession that begins with bare soil and could be caused by clearing of land, forest fire, or drought
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atmosphere
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air surrounding Earth; made up of gases 78% nitrogen, 21% oxygen, and 0.03% carbon dioxide
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precipitation
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moisture releases from cloud which can come in rain, hail, sleet, or snow
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primary succession
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a succession that starts without soil and could be caused by volcano eruption; where everything turns into rock
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photosynthesis
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producers convert light energy into chemical energy in sugar molecules
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latitude
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an imaginary line of measurement of the earth's surface running parallel to the equator
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rain shadow effect
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the wind blowing toward one side of mountain is forced upward because of the mountains shape; the moisture is released in precipitation & as it goes down other side; it is warm & dry
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