Quick Check 8.2 Ecosystem and Environmental Factors Quiz

What do organisms rely on to survive?

• Only biotic factors

• Only abiotic factors

• Both biotic and abiotic factors

• Neither biotic nor abiotic factors

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Which of the following is a biotic factor?

• Sunlight

• Water

• Plants

• Air

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What is an example of a limiting factor in an ecosystem?

• Abundance of food

• Unlimited space

• Scarcity of water

• Excessive sunlight

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Which type of consumer eats only plants?

• Carnivores

• Herbivores

• Omnivores

• Detritivores

What do scientists study to determine an ecosystem's carrying capacity?

• Population size and health

• Types of consumers

• Levels of organization

• Invasive species

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What is an example of competition among animals?

• Plants growing taller

• Lions and cheetahs hunting the same prey

• Birds flying south in winter

• Trees providing shade

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What is an example of an invasive species?

• Native plants

• Yellow floating heart plants

• Local animals

• Indigenous trees

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What is a community in an ecosystem?

• A single living thing

• A group of the same species

• Different populations living together

• Abiotic factors only

How do some species adapt to reduce competition?

• By migrating to follow food resources

• By foraging at different times or in different areas

• By increasing their population size

• By consuming more resources

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What happens when resources are limited in an ecosystem?

• Organisms thrive without competition

• Organisms must compete for survival

• Population sizes increase

• Abiotic factors become irrelevant

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