Ecology quiz 1

Which of the following best describes a producer in an ecosystem?

• An organism that eats other organisms for energy.

• An organism that decomposes dead material.

• An organism that produces its own food through photosynthesis.

• An organism that primarily consumes producers.

What is a consumer in a food chain?

• An organism that breaks down dead organisms.

• An organism that produces its own food.

• An organism that eats other organisms for energy.

• A non-living element that affects the ecosystem.

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Which of the following best describes a decomposer?

• An organism that gets its energy from the sun.

• An organism that eats primary consumers.

• An organism that breaks down dead organisms and returns nutrients to the soil.

• An organism that consumes only plants.

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In a food web, what is the direction of energy flow?

• From decomposers to producers to consumers.

• From consumers to producers to decomposers.

• From producers to consumers to decomposers.

• From decomposers to consumers to producers.

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What does a trophic level indicate in an ecosystem?

• The speed at which an organism decomposes.

• The amount of water available to organisms.

• The position an organism occupies in the food chain.

• The temperature preference of an organism.

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Which of the following is an example of an abiotic factor in an ecosystem?

• Plants

• Animals

• Sunlight

• Bacteria

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What is a biotic factor in an ecosystem?

• Temperature

• Humidity

• Plants

• Rocks

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How does an abiotic factor differ from a biotic factor in an ecosystem?

• Abiotic factors are living components, while biotic factors are non-living components.

• Abiotic factors are non-living components, while biotic factors are living components.

• Abiotic factors can only be found in water, while biotic factors are found on land.

• Abiotic factors produce energy, while biotic factors consume energy.

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