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1.4.6 Energy Flow Worksheet

What is an ecosystem?

An ecosystem is a _________________________________________ with ___________________ and their __________________________ within _____________________, e.g. woodland, etc.

Energy Flow

Ecosystems are unable to function unless there is a constant ________________________________ _____________________.

Where does this energy come from? __________________

The Sun

The sun is the _________________________________________________ for our planet.

Energy Flow

is the _________________________________________________ from one organism to the next in an ecosystem due to ________________, e.g. along a food chain

Feeding allows _____________________________________________________ in an ecosystem.

Energy flow in the ecosystem

Food Chain

Is a flow diagram that begins with a _______________ and shows how _____________________ is passed through a series of ______________________________________.

Each organism feeds on the one before it.

A food chain ends when there is _____________________________________________________.

An example of a food chain:

__________ ( ____________ ( ______

A Grazing food chain

is one where the __________________________________ e.g.

________________ ( grasshoppers ( frogs ( hawks

________________ ( aphids ( ladybirds ( thrushes

________________ ( winkles ( crabs ( herring gulls

________________ ( zooplankton ( copepod ( herring

Grazing Food Chains

A Detritus food chain

is one where the chain begins with ________________________________________________ e.g.

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