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Food Chains and Food Webs

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by

Christopher Harris

on 20 September 2013

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Transcript of Food Chains and Food Webs

Food Chains and Food Webs
Objective: I will be able to interpret and create food chains and food webs
Key Point 1: A Food Chain is a diagram showing the linear path or chain of organisms who are eaten by other organisms
In the battle at Kruger, we saw an example of a simple food chain
grass
lion
buffalo
goes into the
goes into the
A simple food chain
Key Point 2: Food Webs show how many food chains can overlap
But we know that the battle at Kruger wasn't quite that simple...
grass
buffalo
lion
goes into the
goes into the
crocodile
goes into the
trees
zebras
giraffe
Food webs let us trace the paths of
matter
and
energy
through a particular ecosystem

Food webs are a graphic representation that is easier to understand than a chart of the same information
Note: Arrows point to the organism who is doing the eating (where the energy is going.)
Key Point 3: Food webs can be created by identifying which organisms eat and get eaten by others and drawing arrows to correctly depict these relationships
What could the food web for the following organisms look like?
BELL WORK:
Use pages 22 - 28 in your textbook to define the following words (write then in the Vocab Section of your notebook):
Producer
Consumer
Decomposers
Food Chain
Food Web
As you watch the BATTLE AT KRUGER, think of the terms that you just defined. What examples of those terms do you find?
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