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Producer:
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Makes its own food via photosynthesis
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Primary consumer
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Feeds mainly on plants
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Secondary consumer
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Feeds mainly on other animals
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Scavenger
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Feeds on dead animals
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Decomposer
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Feeds on dead and decay matters
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Producer -> Primary consumer -> Secondary consumer -> Tertiary consumer
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From one tropic level to the next tropic level, 90% of the energy is lost as heat to the surroundings
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Only 10% of the energy from one tropic level is transferred to the next tropic level
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A typical food chain
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shows the sequence of organisms through which energy from the sun is transferred
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A typical food chain usually has no more than five trophic levels
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Energy in food is not sufficient to support the growth of living organisms after five trophic levels
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recall: only 10% of the energy is transferred from one trophic level to the next trophic level
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Pyramid of numbers
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represents the number of living organism in each trophic level
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processes that cause energy in food to be lost
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e.g. Respiration, undigested food passing out of body as waste
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Energy conversion
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from light energy from the sun to chemical energy in food at each trophic level
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Herbivores
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animals that eat plants
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Carnivores
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animals that eat meat
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Omnivores
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animals that eat both plants and meat
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Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
