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Published byAnastasia Parsons Modified over 9 years ago
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Flow of Matter and Energy
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A food chain is a linear representation of who eats who in an ecosystem. Producers (plants, algae) Primary Consumer (herbivores) Secondary Consumer (carnivores or omnivores) Tertiary Consumer Quaternary Consumer
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If you die before being incorporated into the food chain... Detritus Feeders Scavengers Decomposers Courtesy of freeimages.co.uk
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Food Webs Food webs show the interactions between many food chains
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Photosynthesis
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Cell Respiration
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Trophic Pyramid Quaternary Consumers 10 kcal Tertiary Consumers 100 kcal Secondary Consumers 1000 kcal Primary Consumers 10,000 kcal Producers 100,000 kcal
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Trophic Pyramid As you move up a trophic pyramid Energy decreases Energy decreases Number of individuals decreases Number of individuals decreases Biomass decreases (# individuals times their weight) Biomass decreases (# individuals times their weight)
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Trophic Pyramids and Feeding a Starving Nation Human Primary Consumers 10,000 kcal Producers 100,000 kcal Human Secondary Consumer 1000 kcal Cow Primary Consumer 10,000 kcal Producers 100,000 kcal
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Bioaccumulation
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