Living Things in Ecosystems Quiz

All the members of a species that live in an ecosystem are a(n) ____.

• Kingdom

• Species

• Community

• Population

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The home of an organism within an ecosystem is its ____.

• Pond

• House

• Habitat

• Community

All of the lion’s relationships with its environment describe its ______.

• Habitat

• Niche

• Population

• Biome

Which of the following is a biotic factor in a forest ecosystem?

• Sunlight

• Temperature

• Trees

• Rocks

Which of the following is an abiotic factor in a forest ecosystem?

• A) Animals

• B) Plants

• C) Water

• D) Insects

How do mutualistic relationships benefit both species involved?

• One species benefits while the other is harmed

• Both species are harmed

• Both species benefit

• Neither species benefits

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Who is credited with proposing the theory of natural selection?

• Albert Einstein

• Charles Darwin

• Isaac Newton

• Gregor Mendel

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How does genetic variation contribute to natural selection?

• It decreases the chances of survival

• It provides different traits for selection

• It leads to uniformity in a population

• It prevents adaptation

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What is the significance of deeper root systems in trees?

• They prevent the tree from growing tall

• They provide greater access to soil nutrients and water

• They make the tree more susceptible to disease

• They reduce the tree’s ability to reproduce

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Which of the following is necessary for natural selection to occur?

• No variation in traits within a population

• Overproduction of offspring

• Every individual in a population survives and reproduces

• A stable, unchanging environment

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