Energy Flow Through Ecosystems

All energy on Earth comes from

• food.

• the sun.

• chemicals.

• non-living things.

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An autotroph can also be called a

• animal.

• consumer.

• heterotroph.

• producer.

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An example of a producer is a

• fungus.

• animal.

• plant.

• person.

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An example of a consumer is a(n)

• oak tree.

• dog.

• algae.

• phytoplankton.

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In the food chain pictured, what type of organism is the bird?

• producer

• primary consumer

• secondary consumer

• tertiary consumer

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Organisms that transform energy from the Sun and use carbon dioxide and water to make food

• Producers

• Decomposers

• Photosynthesis

• Consumers

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Herbivores and carnivores have in common that they both

• are scavengers.
• are consumers.
• are producers.
• are omnivores.

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Which best describes what a food chain shows you?

• Energy flow through an ecosystem
• Food flowing through an ecosystem
• Consumers going into other consumers
• Who eats who

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Where does the energy start in this food chain?

• Plant
• Sun
• Deer
• Wolf

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What is the role of a producer?

• Use sunlight to make food
• Gain energy from eating other organisms
• Keep other species from overpopulating
• Breaking down dead stuff 

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