Energy Transformation in Food Web

The diagram below shows an energy pyramid. In a marine ecosystem, algae carry out photosynthesis. Barracuda eat snapper fish. Reef sharks eat barracuda.

Which organism would be at the top of the energy pyramid?

• algae

• reef shark

• barracuda

• snapper fish

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NGSS.MS-LS1-6

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What happens to MOST of the energy an organism takes in?

• It is used for life processes.

• It is lost the the environment as heat.

• It is stored in the organism's body.

• It is transferred to other organisms.

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What happens during an energy transformation in a living thing?

• Energy is created.

• Energy is destroyed.

• Energy is permanently stored.

• Energy changes from one form to another.

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What is the difference between a food web and an energy pyramid?

• There is no difference; food webs and energy pyramids show the same types of relationships between organisms.

• Food webs show all the feeding relationships between organisms, while energy pyramids show how energy moves from producer to consumer.

• Food webs show an animal at the top of the energy pyramid, while energy pyramids show only how producers get their energy.

• Energy pyramids show how energy flows between organisms, while food webs show only the different organisms in an ecosystem.

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NGSS.MS-LS2-3

Which type of energy conversion occurs during the process of photosynthesis?

• Chemical energy is converted into radiant energy

• Radiant energy is converted into thermal energy.

• Thermal energy is converted into chemical energy

• Radiant energy is converted into chemical energy

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What happens to the solar energy absorbed by plants during photosynthesis?

• It is recycled by plants and returned to the atmosphere.

• It is converted into oxygen and glucose.

• It is stored as heat within the plant for cellular functions.

• It is transformed into chemical energy

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NGSS.MS-LS1-6

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Which of the following statements best describes the flow of energy in an energy pyramid?

• As you go higher in the pyramid, the amount of energy increases.

• There is less energy in a producer level than a consumer level.

• There is no energy above the level of producers in the system

• Each group receives only a small amount of the energy from the level below it.

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NGSS.MS-LS2-3

What do the arrows represent in the diagram of a food chain?

• The order of size of organisms in the ecosystem

• The importance of organisms in the chain

• The direction of energy flow through organisms

• The energy increases as you move from left to right

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NGSS.MS-LS2-3

Animals are consumers, meaning they need to eat food for energy because they cannot make their own. Which energy transformation is taking place when an animal eats food so it can keep warm?

• Mechanical to thermal

• Mechanical to radiant

• Chemical to thermal

• Radiant to chemical

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NGSS.MS-LS1-7

What is indicated by the diagram?

• Food web

• Food chain

• Food map

• Food menu

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