In a food web, what do the arrows represent?

The arrows represent the flow of energy and matter from the organism being consumed to the organism doing the consuming.

Describe the role of decomposers in an ecosystem.

Decomposers break down dead organisms and waste, recycling matter back into the soil and atmosphere for producers to reuse.

6th Grade•50 minutes

I can describe how energy flows and matter cycles through a food web.

A food web shows how matter and energy flow in an ecosystem.

Producers, like plants, use energy from the Sun to create their own food, while consumers obtain energy by eating other organisms.

Decomposers break down dead organisms and waste, recycling matter back into the ecosystem.

This lesson includes 12 practice questions to reinforce learning.

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1. What is the primary source of energy for most ecosystems, as discussed in the video?

2. Explain the role of producers in a food web.

3. What is the role of a consumer in a food web? Give an example from the video.

...and 9 more questions

Matter and energy in food webs | Middle school biology | Khan Academy

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