Energy Flow in Ecosystems

What are decomposers?

• Living things that break down waste and dead plants and animals

• Living things that produce energy from waste

• Living things that eat waste and dead plants and animals

• Living things that create waste and dead plants and animals

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What is the role of decomposers in an ecosystem?

• To create waste and dead plants and animals

• To produce energy for other living things

• To break down waste and dead plants and animals

• To eat waste and dead plants and animals

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How do plants get energy?

• From decomposers

• From the Sun

• From other plants

• From animals

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What happens to the energy from an apple when it is eaten by a mouse?

• The energy is lost

• The energy is transferred to the mouse

• The energy is transferred to the owl

• The energy is transferred to the Sun

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What do decomposers do with waste?

• They eat it

• They store it

• They break it down into smaller parts

• They ignore it

What do plants do with the nutrients from decomposed waste?

• They store them

• They release them into the air

• They use them to make energy

• They pass them to animals

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What would happen if decomposers were removed from an ecosystem?

• The ecosystem would become cleaner

• The ecosystem would become more balanced

• The ecosystem would have more waste

• The ecosystem would collapse

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What is the main source of energy for plants?

• Water

• Sun

• Air

• Animals

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How do decomposers contribute to nutrient cycling in an ecosystem?

• They release nutrients into the soil

• They absorb nutrients from the soil

• They convert nutrients into energy

• They transport nutrients to other organisms

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Why are decomposers considered essential for the survival of an ecosystem?

• They provide food for other organisms

• They help in the process of pollination

• They maintain the pH balance of the soil

• They break down dead organic matter into nutrients

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