1. Energy Flow Through an Ecosystem
Food Chains, Food Webs, Energy Pyramids
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Begins with the SUN
Photosynthesis
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Photosynthesis
ENERGY is stored in glucose
Glucose is stored as starch in plants
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Organisms that can make glucose during photosynthesis are called PRODUCERS.
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5. Producers are plants and algae.
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The energy that is not used by producers can be passed on to organisms that cannot make their own energy.
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7. Organisms that cannot make their own energy are called CONSUMERS.
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8. Primary Consumers eat the producers to get energy:
These consumers that eat plants are called herbivores.
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Most of the energy the primary consumer gets from the producer is used by the consumer.
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10. primary consumer is eaten by a secondary consumer.
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A secondary consumer could be one of the following:
1. Carnivore- eats meat omnivore- eats meat and plants
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Consumers that hunt & kill other consumers are called predators. The animals that are hunted & killed are called prey.
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13. Consumers that eat other dead consumers are called scavengers
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The transfer of energy from the sun to producer to primary consumer then to higher order consumers can be shown in a FOOD CHAIN.
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More Food Chains
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Another way of showing the transfer of energy in an ecosystem is the ENERGY PYRAMID
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Energy Pyramids Show
Eagle is a third order consumer
Snakes are the secondary consumers
Rabbits are the primary
consumer
Producers are on the bottom of the pyramid.(the grass)
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Food Webs:
Are interconnected food chains
They show the feeding relationships in an ecosystem
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20. How Many Chains are in this web? copyright cmassengale