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9 Cards in this Set
- Front
- Back
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What energy roles do organisms play in an ecosystem?
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Consumer, Producer, and Decomposer
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How does enegy move through an ecosystem?
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Through Food Chains and Webs
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How much energy is available at each level of an enegy pyramid?
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10% of the energy from the previous level
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How do an organism's adaptaions help it to survive?
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They help it compete for resources
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What are the major ways in which organisms in an ecosystem interact?
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Competion, Symbiosis, and Predation
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What are the three types of symbiotic relationships?
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Commensilism, Mutualism, and Parsitism
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How do ecologists determine the size of a population?
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Through Direct or Indirect Observation, Sampling, or Mark-and-Recapture
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What causes populations to change in size?
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Births, Deaths, Emigration, and Immigration
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What factors limit population growth?
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Food, Water, Space, and Weather
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