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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Deep sea vent bacteria get their energy from

• eating other bacteria.

• releasing sulfur.

• photosynthesis.

• chemosynthesis.

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Consumers breakdown the macromolecules of the organisms they have eaten to release ATP in a process called

• photosynthesis.

• chemosynthesis.

• cellular respiration.

• ATP liberation.

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Consumers that eat and decompose dead materials are called

• herbivores.

• carnivores.

• omnivores.

• detritivores.

The levels of nourishment in a food chain are called

• pyramids of numbers.

• trophic levels.

• food phases.

• biomagnitudes.

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Because energy flows from organism to organism and is used for metabolism or is converted to heat the next organism in the chain only receives 10% of the energy from the previous level. This is known as the

• Heat Regulation.

• Energy Loss Directive.

• Heat Transfer Rule.

• Rule of 10.

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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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