Exploring Ecosystems and Food Chains

What is the term for a community of living organisms interacting with their physical environment?

• Habitat

• Ecosystem

• Food Chain

• Food Web

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Which of the following is an example of a producer in a food chain?

• Lion

• Grass

• Eagle

• Rabbit

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What is the primary role of decomposers in an ecosystem?

• To produce energy from sunlight

• To break down dead organisms

• To hunt and eat other animals

• To provide shelter for other organisms

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How does energy flow in a food chain?

• From consumers to producers

• From producers to consumers

• From decomposers to producers

• From consumers to decomposers

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Which of the following best describes a habitat?

• A place where an organism lives and gets its needs met

• A series of organisms each dependent on the next as a source of food

• A network of interconnected food chains

• A group of similar ecosystems

Why is a food web more complex than a food chain?

• It includes only producers and consumers

• It shows multiple paths of energy flow

• It focuses on a single organism

• It does not include decomposers

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Explain how a change in one population in a food web can affect other populations.

• A decrease in prey population can lead to a decrease in predator population due to lack of food.

• An increase in predator population will have no effect on prey population.

• A change in one population does not affect other populations.

• An increase in prey population will decrease the producer population.

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Predict what might happen to an ecosystem if all its producers were removed.

• The ecosystem would remain unchanged.

• Consumers would increase in number.

• The ecosystem would collapse due to lack of energy source.

• Decomposers would become producers.

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Design a simple food chain using the following organisms: grass, rabbit, fox.

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Analyze the impact of removing a top predator from a food web.

• It would have no impact on the food web.

• Prey populations might increase, leading to overconsumption of producers.

• Producers would decrease in number.

• Decomposers would become the new top predators.

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