Food Web Basics

What is a producer in a food web?

• Organism that produces its own food

• Organism that consumes other organisms

• Organism that hibernates during winter

• Organism that lives in the ocean

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Give an example of a consumer in a food web.

• Rabbit

• Tree

• Sunlight

• Grass

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Explain the role of decomposers in a food web.

• Decomposers primarily feed on live plants and animals.

• Decomposers break down dead organisms and organic matter, releasing nutrients back into the ecosystem.

• Decomposers create new organisms in the ecosystem.

• Decomposers reduce the amount of oxygen in the environment.

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What is a trophic level and how is it related to a food web?

• A trophic level is a term used to describe the size of an organism in a food web

• A trophic level is a position in a food chain or ecological pyramid, representing the feeding level of an organism in a food web.

• A trophic level is a representation of an organism's speed in a food web

• A trophic level is a measure of an organism's age in a food web

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Describe the concept of energy flow in a food web.

• Energy flow in a food web is solely dependent on abiotic factors.

• Energy flow in a food web involves the exchange of genetic material between organisms.

• Energy flow in a food web involves the transfer of energy from one organism to another through the consumption of food.

• Energy flow in a food web occurs through photosynthesis only.

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Provide an example of a food chain in a food web.

• grass -> grasshopper -> frog -> bird

• algae -> fish -> bear -> wolf

• grass -> grasshopper -> frog -> snake

• sun -> plant -> human -> cow

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How do producers obtain energy in a food web?

• Decomposition

• Photosynthesis

• Respiration

• Chemosynthesis

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What happens to energy as it moves through different trophic levels in a food web?

• Energy decreases

• Energy remains constant

• Energy multiplies

• Energy increases

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Use the diagram answer the question.
What is a fitting description for this diagram?

• A Food Chain
• An Ecosystem
• A Food Web
• Biotic and Abiotic Factors

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True or False. In this Food Web Pyramid the consumers on each level only get about 10 percent of energy that the plants have stored.

• True
• False

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