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Exploring Energy Transfer in Ecosystems: Producers and Consumers

Learn about autotrophs and heterotrophs, primary, secondary, tertiary, and quaternary consumers, as well as food webs and chains. Discover the flow of energy in ecosystems and the role of the sun as an energy source. Watch the video "Whose Group Will Stay Alive??" to see the behavior of different organisms in an ecosystem.

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Exploring Energy Transfer in Ecosystems: Producers and Consumers

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  1. Producers • Organisms that are able to make their own food without hunting • Also known as: • Autotrophs • Auto- means self • Troph means feed • Ex. Plants (some bacteria & algae)

  2. Consumers Obtain energy from eating other organisms Also know as: Heterotrophs Hetero- different Troph- feed Ex. Animals, Fungi, protists

  3. Primary Consumers1st order consumer • Plant eaters • Also known as: Herbivores

  4. Secondary Consumers2nd order consumer • Organisms that eat herbivores • Also known as: Carnivores

  5. Tertiary Consumers3rd Order Consumer • Organisms that eat secondary consumers

  6. Quarternary Consumers4th Order Consumer • Organisms that eat tertiary consumers

  7. The arrows in this picture represent: • the flow of energy

  8. Food Web This pictures shows a: • A food web shows all possible pathways of energy transfer in a community.

  9. Food Chains • shows one possible pathway for energy in a community • Food chains can vary in length.

  10. As you move through the food chain energy is lost • Organisms expend energy on movement, growth, repair and reproduction. • Most of the remaining energy is released into the environment as heat—a byproduct of these activities.

  11. Scientists estimate only 10% of the energy passes from one level to the next. • Energy cannot be created nor destroyed. • Where does all the energy originate? • The sun (radiant energy) ?

  12. Explain the behavior of the different organisms present in this (poor quality) video. https://www.youtube.com/watch?v=LU8DDYz68kM

  13. Whose Group Will Stay Alive??

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