How Does Energy Move Between Organisms

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.

• It shows how sunlight flows within an ecosystem.

• They show what direction the energy is flowing between organisms. 

• They represent how water is transferred within a habitat.

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An energy pyramid represents what?

• How much sunlight is available for the ecosystem to use. 

• How much energy a particular organism needs. 

• How much energy is needed to build a pyramid. 

• The amount of energy available to the next 'feeder' in a food web.

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

• 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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Organisms at the ​ (a)   trophic levels have the ​ (b)   amount of energy while energy ​ (c)   at ​ (d)   trophic levels

• lower

• largest

• decreases

• higher

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How much energy is available to be passed on to the next level in a food web?

• 100%

• 10%

• 50%

• 75%

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How will a large decrease in the number of rats impact the food web shown above?

• There will be an increase in the number of ants, tarantulas, and snakes.

• There will be an increase in the number of snakes, coyotes, and hawks.

• There will be a decrease in the number of snakes, coyotes, and hawks.

• There will be a decrease in the number of cacti and sagebrush plants.

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Which organisms above represent the producers?

• Cacti and sagebrush

• Hawks and coyotes

• Ants and tarantulas

• Rats and snakes

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Analyze the positions of the eagle and the snake in the food web pictured above. Which of the following statements is correct?

• The eagle eats more types of organisms in the food web than the snake does.

• The eagle eats the same types of organisms as the snake does.

• The snake eats more types of organisms in the food web than theeagle does.

• The snake is eaten by the same types of organisms as the eagle is.

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Analyze the food web above. Which animal receives the most energy originally produced by the plants in the food web?

• rabbit

• frog

• owl

• snake

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