Ecosystems and Energy Flow Practice Quiz

What is a decomposer?

• Organisms that produce their own food through photosynthesis.

• Organisms that break down dead organic material, returning nutrients to the soil.

• Organisms that consume other living organisms for energy.

• Organisms that filter water and purify the environment.

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What are abiotic factors?

• Living organisms that interact with the environment.

• Nonliving elements like water, soil, air, and sunlight.

• Factors that are influenced by living organisms.

• Only the physical aspects of the environment.

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What is an ecosystem?

• A system of living organisms only.

• The interaction between biotic (living) and abiotic (non-living) factors in an environment.

• A collection of abiotic factors in a specific area.

• A group of similar species living together.

Tags

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What is a consumer in an ecosystem?

• Organisms that produce their own food through photosynthesis.

• Organisms that eat other organisms for energy, such as animals.

• Organisms that decompose dead matter and recycle nutrients.

• Organisms that live in symbiotic relationships with producers.

Tags

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What is biodiversity?

• Biodiversity refers to the variety of life in a particular habitat or ecosystem.

• Biodiversity is the number of species in a specific geographical area.

• Biodiversity is the total number of organisms on Earth.

• Biodiversity refers to the genetic variation within a species.

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What is the significance of energy flow in an ecosystem?

• Energy flow is crucial as it sustains the ecosystem by transferring energy from one trophic level to another.

• Energy flow is unimportant and does not affect the ecosystem.

• Energy flow only occurs in aquatic ecosystems and not in terrestrial ones.

• Energy flow is a process that only happens during the day.

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Identify a biotic factor.

• Bacteria

• Rocks

• Water

• Sunlight

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What is a trophic level?

• A position in a food chain or food web, representing the flow of energy and nutrients.

• A type of ecosystem where organisms interact with each other.

• A measure of the biodiversity in a given area.

• A classification of organisms based on their size and shape.

Tags

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Give an example of an abiotic factor.

• Water

• Trees

• Animals

• Bacteria

Tags

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What does a food chain represent?

• A food chain shows the energy flow between organisms in one area.

• A food chain illustrates the physical characteristics of organisms.

• A food chain represents the geographical distribution of species.

• A food chain describes the reproductive habits of organisms.

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