Energy Flow Through Ecosystems Quiz

What is energy defined as in general?

• The ability to rest

• The ability to grow

• The ability to do work or create change

• The ability to reproduce

Which molecule is often used as energy in complex metabolic pathways?

• Glucose

• Adenosine triphosphate (ATP)

• Oxygen

• Carbon dioxide

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What are autotrophs also known as?

• Consumers

• Decomposers

• Detritivores

• Producers

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Which process do photoautotrophs use to harness energy?

• Photosynthesis

• Fermentation

• Chemosynthesis

• Respiration

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What do chemoautotrophs use as an energy source?

• Inorganic molecules

• Sunlight

• Organic molecules

• Water

What is the primary energy source for most of the world’s ecosystems?

• Heterotrophs

• Photoautotrophs

• Chemoautotrophs

• Detritivores

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What do heterotrophs depend on for energy?

• Other heterotrophs

• Detritivores

• Decomposers

• Producers

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What is a food chain?

• A linear sequence of organisms through which nutrients and energy pass

• A network of interconnected food webs

• A group of organisms that live together

• A type of ecosystem

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What is the first trophic level in a food chain?

• Producers

• Secondary consumers

• Primary consumers

• Tertiary consumers

What is biomagnification?

• The increase in energy as it moves up the food chain

• The decrease in energy as it moves up the food chain

• The concentration of toxins as they move up the food chain

• The spread of nutrients in an ecosystem

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