Diagram the Flow of Energy Through Living Systems Including Food Chains Food Webs and Energy Pyramids

Trapping and hunting has greatly reduced the population of snakes. What is the most likely effect of this change in the ecosystem?

• The population of frogs will increase

• The population of mice will decrease

• The population of ants will increase

• the population of frogs will decrease

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In the food web, if the population of grasshoppers increased, what would be a result?

• The population of rabbits would decrease

• The population of lizards would decrease

• The population of snakes would increase

• The population of grass would increase

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What is the difference between a food chain and a food web?

• A food chain is larger than a food web

• A food chain is the combination of all the food webs in an ecosystem

• A food web is smaller than a food chain

• A food web is the combination of all the food chains in an ecosystem

In this food web, energy flows from —

• the hawk to the grass to the snake and the rabbit

• the grass to the hawk to the rabbit

• the grass to the grasshopper to the toad

• the grasshopper to the toad to the sparrow

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Which organisms would contain the greatest amount of available energy?

• rabbits and deer

• grasses and shrubs

• lice

• hawks

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Ryan built a biotic community by adding water plants, snails, small fish, and water to a large jug. Which best represents the energy flow in this biotic community?

• I and II only

• II and III only

• I and IV only

• II and IV only

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In the food web diagram, which TWO organisms are secondary consumers?

• Rabbit, Snake

• Hawk, Grasshopper

• Lizard, Snake

• Hawk, Lizard

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The picture below shows an energy pyramid. What will most likely happen to the foxes and the wolves if the rabbits are removed?

• The foxes will eat more wolves.

• The foxes will eat fewer wolves.

• There will be more foxes and wolves.

• There will be fewer foxes and wolves.

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The picture shows the energy flow through a meadow community. Which of the following would most likely occur to the populations within the community of organisms immediately after a wild fire burns the environment?

• Hawks would increase and foxes would increase.

• Hawks would decrease and foxes would increase.

• Meadow plants would increase and rabbits would decrease.

• Meadow plants would decrease and rabbits would decrease.

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Which statement best describes the flow of energy as it passes through the organisms in the pyramid?

• Energy flows through the organisms from bottom to top and increases at each level.

• Energy flows through the organisms from bottom to top and decreases at each level.

• Energy flows through the organisms from top to bottom and increase at each level.

• Energy flows through the organisms from top to bottom and decreases at each level.

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