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Energy Flow Through in Ecosystems

Energy Flow Through in Ecosystems. Lesson 1 Food Chains, Food Webs, Energy Pyramids. ALL LIVING THINGS USE ENERGY. The Earth is SOLAR POWERED!. _____________ is the main source of energy for life on Earth. SUNLIGHT. http://www.animation-station.com/smileys/index.php?page=17.

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Energy Flow Through in Ecosystems

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  1. Energy Flow Through in Ecosystems Lesson 1 Food Chains, Food Webs, Energy Pyramids

  2. ALL LIVING THINGS USE ENERGY The Earth is SOLAR POWERED! • _____________ is the main source of energy for life on Earth. SUNLIGHT http://www.animation-station.com/smileys/index.php?page=17

  3. Photosynthesis • Chemical reaction where green plants use water & carbon dioxide to store the sun’s energy in glucose

  4. An organism that can make its own food are calledPRODUCERS.

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

  6. An organism that obtains energy by feeding on other organisms are calledCONSUMERS.

  7. HETEROTROPHS = CONSUMERS • ________________ = • eat only plants • ________________ = • eat only animals • ________________ = • eat both plants & animals HERBIVORES CARNIVORES OMNIVORES http://gallery.hd.org/_exhibits/natural-science/_more2003/_more09/elephant-eating-greenery-in-Addo-Park-Eastern-Cape-South-Africa-2-WL.jpg http://personal.ecu.edu/wuenschk/rabbit-wolf.gif http://www.rodsguide.com/bears/eating.jpg

  8. Carnivore that feeds on the bodies of dead organisms are called scavengers

  9. Decomposersbreak down biotic wastes & dead organisms, returning raw materials to the ecosystem • Ex. Fungi & bacteria

  10. Series of events win which 1 organism eats another & obtains energy • ________________ • = _________________ CONSUMERS(Heterotrophs) ↑ ↑ PRODUCERS(Autotrophs) FOOD CHAIN http://fig.cox.miami.edu/Faculty/Dana/foodchain.jpg

  11. The transfer of energy from the sun to producer to primary consumer then to higher order consumers can be shown in a FOOD CHAIN.ONLY 1 Direction!!

  12. Food Chain 3rd level consumer 2nd level Consumer 1st level Consumer 4th level Consumer Producer(trapped sunlight & stored food)

  13. More Food Chains

  14. Name the Producer, Consumers & Decomposers in this food chain:

  15. Pearson Education Inc, Publishing as Pearson Prentice Hall In most ecosystems feeding relationships are more complex • A ______________ consists of many overlapping chains in an ecosystem. FOOD WEB

  16. How Many Chains are in this web?

  17. Levels • Producers • Always The First Level • How Energy Enters The System • Herbivores • Second Level (1st consumers) • Feed directly on producers • Carnivores/Omnivores • Make Up The Remaining Levels • Each level depends on the one below it for energy.

  18. Diagram that shows the amount of energy that moves from one feeding level to another is an ENERGY PYRAMID

  19. Energy Pyramids Show • Amount of available energy decreases for higher consumers • It takes a large number of producers to support a smaller number herbivores & large number of herbivores to support a smaller number of carnivores

  20. Energy Pyramids Show Available Energy

  21. Energy Pyramid Only 10% of energy at level is moved to the next level--Rest is lost asHEAT

  22. Identify the Producers, Consumers, & Decomposers: Count the Food Chains!

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