Understanding Ecosystems and Food Chains

Which of the following is a process by which plants make their own food using sunlight?

• Respiration

• Photosynthesis

• Digestion

• Fermentation

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DOK Level 1: Recall

What is the primary role of a producer in an ecosystem?

• To eat other animals

• To make food using sunlight

• To decompose dead organisms

• To hunt prey

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DOK Level 1: Recall

Which of the following animals is an example of a herbivore?

• Lion

• Cow

• Eagle

• Shark

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DOK Level 1: Recall

Identify the term that describes an organism that eats both plants and animals.

• Herbivore

• Carnivore

• Omnivore

• Producer

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DOK Level 1: Recall

Which of the following best describes a predator?

• An organism that is hunted and eaten by others

• An organism that hunts and eats other animals

• An organism that makes its own food

• An organism that decomposes dead matter

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DOK Level 1: Recall

Explain how a carnivore and an omnivore are different in terms of their diet.

• Both eat only plants

• Carnivores eat only animals, while omnivores eat both plants and animals

• Both eat only animals

• Carnivores eat only plants, while omnivores eat only animals

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DOK Level 2: Skill/Concept

Why is photosynthesis important for both producers and consumers in an ecosystem?

• It provides oxygen and food for producers only

• It provides food and oxygen for both producers and consumers

• It provides food for consumers only

• It provides oxygen for consumers only

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DOK Level 2: Skill/Concept

How does the role of a consumer differ from that of a producer in an ecosystem?

• Consumers make their own food, while producers eat other organisms

• Consumers eat other organisms, while producers make their own food

• Both consumers and producers make their own food

• Both consumers and producers eat other organisms

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DOK Level 2: Skill/Concept

Plan a simple food chain using the following terms: producer, herbivore, carnivore. Describe the flow of energy.

• Producer → Carnivore → Herbivore

• Herbivore → Producer → Carnivore

• Producer → Herbivore → Carnivore

• Carnivore → Herbivore → Producer

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DOK Level 3: Strategic Thinking

Evaluate the impact on an ecosystem if all producers were removed. What would happen to the consumers?

• Consumers would thrive and increase in number

• Consumers would have no food source and eventually die

• Consumers would start making their own food

• Consumers would not be affected

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DOK Level 3: Strategic Thinking