Understanding Food Webs and Energy Flow

What is a food web?

• A single food chain in a habitat

• A network of interconnected food chains

• A type of plant that produces food

• A group of animals that eat the same food

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

• Eagle

• Grasshopper

• Plant

• Frog

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How do plants prepare their food?

• By consuming other plants

• By using energy from the Sun

• By eating insects

• By decomposing dead animals

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Identify the first level consumer from the following options.

• Snake

• Rabbit

• Owl

• Eagle

What role do decomposers play in a food web?

• They produce food for plants

• They consume herbivores

• They break down dead organisms into nutrients

• They are the top predators

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Explain why energy decreases at each level of a food chain.

• Energy is lost as heat at each step

• Energy is stored in the soil

• Energy is gained at each level

• Energy is not transferred between levels

Which of the following sequences correctly represents a simple food chain?

• Plant → Grasshopper → Frog → Snake

• Eagle → Snake → Frog → Grasshopper

• Snake → Frog → Grasshopper → Plant

• Frog → Grasshopper → Plant → Snake

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How does the flow of energy in a food web differ from that in a food chain?

• Energy flows in multiple directions in a food web

• Energy flows in a single direction in a food web

• Energy does not flow in a food web

• Energy flows only to decomposers in a food web

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Why is it important to have a large number of producers in a food web?

• To provide energy for decomposers

• To support a few tertiary consumers

• To increase the number of carnivores

• To reduce the number of herbivores

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Analyze the impact of removing a primary consumer from a food web.

• It would increase the number of producers

• It would decrease the energy available to secondary consumers

• It would have no effect on the food web

• It would increase the number of tertiary consumers

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