Exploring Food Chains and Webs

Which of the following best describes a food chain?

• A network of interconnected food webs

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

• A group of organisms that share the same habitat

• A collection of organisms that do not interact with each other

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In a simple food chain, which of the following is most likely to be the producer?

• Rabbit

• Grass

• Hawk

• Snake

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What role do decomposers play in a food web?

• They produce energy from sunlight

• They break down dead organisms and recycle nutrients

• They are the top predators

• They compete with primary consumers for food

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Which of the following organisms is most likely to be a secondary consumer in a food chain?

• Grasshopper

• Frog

• Grass

• Eagle

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If a disease reduces the population of rabbits in a food web, what is the most likely immediate effect on the population of foxes that prey on them?

• The fox population will increase

• The fox population will decrease

• The fox population will remain the same

• The foxes will switch to eating plants

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DOK Level 2: Skill/Concept

Which of the following best describes a food web?

• A single linear sequence of organisms

• A complex network of interconnected food chains

• A group of organisms that do not interact

• A collection of organisms that share the same habitat

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In a food web, what is the primary source of energy for all organisms?

• Water

• Sunlight

• Soil

• Air

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Which of the following is an example of a tertiary (Apex) consumer?

• Algae

• Grasshopper

• Snake

• Lion

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How does energy flow through a food chain?

• From top predators to primary producers

• From the sun to producers to consumers

• In a circular motion

• Randomly between organisms

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

• It increases

• It decreases

• It remains constant

• It is destroyed

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DOK Level 2: Skill/Concept