Wednesday 11 March 2015

Energy through Food Chains

Check out THIS presentation on food chains.  It's a pretty simplistic representation -but in reality there is a whole lot going on!  Energy transfers from the sun through the food chain, but at each level only 10% of energy that an organism consumes is passed along.
This transfer rarely occurs in a solitary line from just one species to the next, but in complex ecosystems, there are often many connections between different producers, primary consumers, secondary consumers and beyond.

Your task, for tomorrow is to draw a food WEB (not a single chain) showing the many relationships between organisms in an ecosystem that is familiar to you (like your backyard, your cabin, your fav vacation spot in Hawaii).  Remember arrows show the direction of energy, not who is eating who.



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