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Energy Flow in Ecosystems

Learn about photosynthesis, food chains, food webs, and energy pyramids. Discover how producers convert radiant energy from the sun into chemical energy, passing it on to consumers in various trophic levels.

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Energy Flow in Ecosystems

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  1. Energy Flow through an Ecosystem Photosynthesis, Food Chains, Food Webs, & Energy Pyramids

  2. Organisms that can make glucose during photosynthesis Producers

  3. radiant energy Plants use ___________they receive from the sun & convert it to ______________ in a process called ____________. chemical energy photosynthesis

  4. 6CO2 + 6H2O + sunlight & chlorophyll C6H12O6 + 6O2

  5. Producers use most of the energy they make for ___________. themselves

  6. The energy that is not used by producers can be passed on to organisms that cannot make their own energy.

  7. Organisms that cannot make their own energy Consumers

  8. A consumer that eats producers to get energy: • Is called a (primary) or • ___________________ first order consumer

  9. Most of the energy the primary consumer gets from the producer is used by the consumer. Some energy is stored and can be passed on.

  10. A consumer that eats another consumer for energy: • Is called a __________ or second order consumer secondary

  11. Most of the energy the secondary consumer gets from the primary consumer is used by the secondary consumer. Some energy is stored and can be passed on.

  12. A consumer that eats a consumer that already ate a consumer: • Is called a 3rd order • or __________ consumer tertiary

  13. Types of Consumers: Herbivore Omnivores Carnivore Decomposer Think of examples for each type of consumer!

  14. Consumers that eat other dead consumers are called ________ scavengers

  15. Food Chain The transfer of energy from the sun to producer to primary consumer then to higher order consumers

  16. Label the parts of this food chain: Radiant Energy Tertiary Consumer Producer Secondary Consumer Primary Consumer

  17. More Food Chains

  18. Another way of showing the transfer of energy in an ecosystem Energy Pyramid

  19. Food Chains Show Available Energy

  20. Energy Pyramids Show • It takes a large number of producers to support a small number of primary consumers • It takes a large number of primary consumers to support a small number of secondary consumers • Energy is transferred up the food pyramid

  21. Food Webs • Interconnected food chains • They show the feeding relationships in an ecosystem

  22. What do the arrows represent? Energy transfer from organism to organism in the food web

  23. How are food webs limited models? Food webs do not include all parts (animals and resources) of an ecosystem.

  24. How Many Chains are in this web?

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