Organism Interdependence Quiz

What is the primary source of energy for most food chains?

• Wind

• The Sun

• Thermal vents

• Decomposition

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In a food chain, what role do plants typically play?

• Primary consumers

• Secondary consumers

• Producers

• Decomposers

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Which of the following best describes a herbivore?

• An organism that eats only plants

• An organism that eats both plants and animals

• An organism that eats only animals

• An organism that breaks down dead matter

What is a trophic level?

• A type of ecosystem

• A classification of organisms based on their geographical location

• Each step in a food chain or food web

• A measure of how much energy is in an organism

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Which of the following organisms is most likely to be at the top of a food chain?

• Grass

• Rabbit

• Wolf

• Algae

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What happens to energy as it moves up a food chain?

• It increases

• It decreases

• It stays the same

• It is converted to mass

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In an ecosystem, what role do decomposers play?

• They produce their own food through photosynthesis

• They consume living plants and animals

• They break down dead organisms and recycle nutrients back into the ecosystem

• They prey on primary consumers

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Which of the following is an example of a mutualistic relationship?

• A lion eating a zebra

• A tick feeding on a dog

• Bees pollinating flowers while collecting nectar

• A shark and a remora fish, where the remora cleans the shark's skin

What is the main difference between a food chain and a food web?

• A food chain is a single pathway of energy flow, while a food web consists of many interconnected food chains

• A food web only includes primary consumers, while a food chain includes all trophic levels

• A food chain is found in terrestrial ecosystems, while a food web is found in aquatic ecosystems

• There is no difference; they are just different terms for the same concept

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Which of the following best describes the importance of ecosystem interactions?

• They ensure that individual species survive in isolation

• They prevent any single species from reproducing

• They maintain the balance and flow of energy and nutrients

• They ensure that all species have an equal chance of survival

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