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Food Chains And Webs PowerPoint Presentation

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Slide 1 - Food Chains and Webs
Slide 2 - Producers Primary Consumers Secondary Consumers Tertiary Consumers
Slide 3 - ppt slide no 3 content not found
Slide 4 - Another Link in the Food Chain Everyone plays a specific role in the food chain of life. You might be a human thinking they are king of the hill or you might be a bacterium under the feet. You are very important to the survival of the system no matter what role you play.
Slide 5 - Food Chains and Webs You will see the terms food chains and food webs. They describe the same series of events that happen when one organism consumes another to survive.
Slide 6 - Food web is a more accurate term since every organism is involved with several other organisms.
Slide 7 - The Producers Producers are the beginning of a simple food chain. Producers are plants and vegetables.
Slide 8 - The Producers All energy comes from the Sun and plants are the ones who make food with that energy. They use the process of photosynthesis. Plants also make loads of other nutrients for other organisms to eat.
Slide 9 - The Consumers Consumers are the next link in a food chain. There are three levels of consumers.
Slide 10 - Tertiary consumers (3rd order) Eat the primary and secondary consumers (CARNIVORES) ex: wolf eats cat and squirrel Secondary consumers (2nd Order) Eat the primary consumers (CARNIVORES) example: cat eats squirrel Primary consumers (1st Order) Worms, insects, squirrels, mice: all eat plants (HERBIVORES) ex: squirrel eats acorns
Slide 11 - Omnivores eat both plants and meat They can be EITHER primary or secondary consumers.
Slide 12 - Scavengers =They eat the remains of dead organisms left by the consumers - vultures, coyotes, hyenas
Slide 13 - The last links in the chain are the decomposers. (They break things down) Like bacteria, mold, fungi, mushrooms If you die, they eat you. If you poop, they eat that. If you lose a leaf, they eat it. Whenever something that was alive dies, the decomposers get it. The Decomposers
Slide 14 - Decomposers break down nutrients in the dead "stuff" and return it to the soil. The producers can then use the nutrients and elements once it's in the soil. The decomposers complete the system, returning essential molecules to the producers.
Slide 15 - The End
Slide 16 - This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.