9/15Review Energy Transfer in Ecosystems

What does a food chain represent in an ecosystem?

• The process of photosynthesis where plants convert sunlight into energy

• The different levels of a food chain depicted in a diagram

• A linear sequence of organisms where each organism is eaten by the next one in the sequence

• A complex network of interconnected food chains

Why is a food web a better representation of energy transfer in an ecosystem than a food chain?

• A food web shows the flow of energy in multiple directions, while a food chain only shows a linear sequence

• A food web is easier to understand than a food chain

• A food web includes more organisms than a food chain

• A food web is a newer concept than a food chain

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What does a food web include that a food chain does not?

• Producers and decomposers

• Carnivores and herbivores

• Predators and prey

• Plants and animals

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Which statement is true about energy transfer in a food web?

• Energy flows from herbivores to carnivores

• Energy flows from carnivores to herbivores

• Energy flows from decomposers to producers

• Energy flows from producers to decomposers

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What is the role of decomposers in a food web?

• To eat other organisms for energy

• To break down dead organisms and recycle nutrients back into the ecosystem

• To provide energy to the producers

• To control the population of herbivores

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Which organism is at the top of the food web?

• Producers

• Carnivores

• Herbivores

• Decomposers

What happens to the energy as it moves through a food web?

• The energy is lost as heat

• The energy is stored in the organisms' bodies

• The energy is converted into light

• The energy is used to produce more energy

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Which statement is true about the complexity of a food web?

• A food web is less complex than a food chain

• A food web is more complex than a food chain

• A food web and a food chain have the same level of complexity

• The complexity of a food web depends on the number of producers

What is the primary source of energy in a food web?

• Sunlight

• Water

• Air

• Soil

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Which statement is true about the interdependence of organisms in a food web?

• Organisms in a food web do not depend on each other for survival

• Organisms in a food web only depend on the producers for survival

• Organisms in a food web depend on each other for food and energy

• Organisms in a food web only depend on the decomposers for survival

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