Unit 8: Energy in Ecosystems

A living thing that makes its own food is called a __________________________.

• consumer
• producer
• carnivore
• herbivore

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If you connect all the food chains in an ecosystem you get a __________________________.

• food web
• food chain
• niche
• symbiosis

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In the food web shown, the snail would be considered...

• primary consumer
• secondary consumer
• tertiary consumer
• producer

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Which best describes what arrows represent in a food web and food chain?

• Energy flowing through an ecosystem

• Food flowing through an ecosystem

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What is the role of decomposers in a food chain?

• Use sunlight to make food
• Eat other organisms to gain energy
• Make the food for the whole food chain
• Break down dead organisms and add nutrients to the soil

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What is a consumer?

• Use sunlight to make food 
• Eats plants and/or animals for energy

• Break down dead stuff
• Add nutrients to the soil

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Which of these is true about this food web?

• The Owl gets its energy from the producer.

• The Lion gets its energy only from a wild cat.

• The Kite gets its energy from the goat.

• The Mouse gets its energy from the producer

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What is the difference between a food web and a food chain?

• A food chain is a linear sequence of energy transfer, while a food web is a complex network of interconnected food chains.
• A food chain shows only herbivores, while a food web includes both herbivores and carnivores.
• A food web is always smaller than a food chain in terms of energy transfer.
• A food chain includes multiple species, while a food web focuses on a single species.

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All the green plants that provide energy for the consumers

• consumers

• decomposers

• producers

• herbivores

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Which of the following is the secondary consumer?

• leaf

• caterpillar

• frog

• snake

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