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23 Cards in this Set
- Front
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1 Ecology |
scientific study of interactions among organisms and between organisms and their environment
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2 Biosphere |
part of Earth in which life exists including land, water, and air or atmosphere. |
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3 Species |
group of similar organisms that can breed and produce fertile offspring |
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4 Population |
group of individuals of the same species that live in the same area |
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5Community |
assemblage of different populations that live together in a defined area |
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6Ecosystem |
collection of all the organisms that live in a particular place, together with their nonliving environment |
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7 Biome |
group of ecosystems that have the same climate and dominant communities. |
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8 Autotroph |
organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer. |
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9 Producer |
organism that can capture energy from sunlight or chemicals and use it to produce food from inorganic compounds; also called an autotroph. |
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10 Photosynthesis |
process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches. |
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11 Chemosynthesis |
process by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates. |
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12 Heterotroph |
organism that obtains energy from the foods it consumes; also called a consumer. |
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13 Consumer |
organism that relies on other organisms for its energy and food supply; also called a heterotroph. |
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14 Herbivore |
organism that obtains energy by eating only plants. |
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15 Carnivore |
organism that obtains energy by eating animals. |
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16 Omnivore |
organism that obtains energy by eating both plants and animals. |
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17 Detritivore |
organism that feeds on plant and animal remains and other dead matter. |
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18 Decomposer |
organism that breaks down and obtains energy from dead organic matter. |
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19 Food Chain |
series of steps in an ecosystem in which organisms transfer energy by eating and being eaten. |
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20 Food Web |
network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem. |
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21 Trophic Level |
step in a food chain or food web. |
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22 Ecological Pyramid |
diagram that shows the relative amounts of energy or matter within each trophic level in a food chain or food web. |
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23 Biomass |
total amount of living tissue within a given trophic level. |
