Ecological Relationships and Organization Quiz

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

• Trees

• Sunlight

• Animals

• Bacteria

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DOK Level 1: Recall

What type of symbiotic relationship benefits both organisms involved?

• Parasitism

• Commensalism

• Mutualism

• Predation

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DOK Level 1: Recall

Arrange the following levels of ecological organization from smallest to largest: community, organism, ecosystem, population.

• Organism, Population, Community, Ecosystem

• Population, Organism, Ecosystem, Community

• Ecosystem, Community, Population, Organism

• Community, Ecosystem, Organism, Population

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DOK Level 2: Skill/Concept

Which of the following is a direct effect of predation in an ecosystem?

• Increase in prey population

• Decrease in predator population

• Control of prey population size

• Increase in plant growth

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DOK Level 1: Recall

Which of the following is an example of a biotic factor in an ecosystem?

• Water

• Soil

• Fish

• Temperature

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DOK Level 1: Recall

How does mutualism differ from parasitism?

• Mutualism harms both organisms, while parasitism benefits both.

• Mutualism benefits one organism, while parasitism benefits both.

• Mutualism benefits both organisms, while parasitism benefits one and harms the other.

• Mutualism harms one organism, while parasitism harms both.

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DOK Level 2: Skill/Concept

In a commensal relationship, how is one organism affected?

• It is harmed.

• It is unaffected.

• It benefits.

• It is destroyed.

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DOK Level 1: Recall

What is the main difference between a community and a population in ecological terms?

• A community includes only one species, while a population includes multiple species.

• A community includes multiple species, while a population includes only one species.

• A community is smaller than a population.

• A community is the same as a population.

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DOK Level 2: Skill/Concept

Which of the following is NOT an abiotic factor?

• Temperature

• Light

• Grass

• Water

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DOK Level 1: Recall

Which type of symbiotic relationship involves one organism benefiting while the other is harmed?

• Mutualism

• Commensalism

• Parasitism

• Cooperation

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DOK Level 1: Recall