Exploring the Nature of Energy Flow

Which of the following statements most accurately describes the energy transfer between the levels of the food pyramid in the Indian River Lagoon System?

• Energy travels up the pyramid

• Energy stays in the phytoplankton at the lowest level

• Energy is released in the environment only at the top level

• Energy moves from the flounder to both the clam and the egret

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is a tertiary consumer from the food web shown?

• Kite

• Owl

• Jackal

• Tree

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NGSS.MS-LS2-3

A new species of hawk that feeds on snakes was introduced to this ecosystem. What is going to happen to the Kite population now that they are competing for snakes with the hawk?

• The kite population will increase.

• The hawks will have no influence on the population of kites because they have more food to eat.

• The kite will become better adapted to the environment.

• The kite population will decrease because they are now competing for food with the hawk.

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A student has set up an artificial ecosystem for a class project. This ecosystem has producers, first-level consumers, second-level consumers, and third-level consumers. By accident, a chemical enters the ecosystem and kills all of the first-level consumers. Which group(s) of organisms will most likely survive?

• Producers
• second-level consumers
• second-level and third-level consumers
• third-level consumers and producers

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

In this food web, which two organisms could be harmed if the mouse population were to decrease?

• Deer and caterpillar
• Wolf and snake
• Oak and grass
• Hawk and songbird

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Suppose that a llama is hit by a truck and dies. Where will most of the biological matter in the llama go next?

• To top level predatory animals
• To the soil to be used by plants
• To first order consumers that might eat the llama
• To microorganisms that decompose and recycle matter

Tags

NGSS.MS-LS2-3

Which organisms in the diagram have the largest total energy to give to other organisms?

• Cattails and Marsh Grass
• Hawks and Snakes
• Crickets and Grasshoppers
• Shrews and Frogs

Tags

NGSS.MS-LS2-3

What is the tertiary consumer in this energy pyramid?

• hawk

• snake

• frog

• grasshopper

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NGSS.MS-LS2-3

What is the secondary consumer in this energy pyramid?

• frog

• snake

• hawk

• grasshopper

Tags

NGSS.MS-LS2-3

The energy pyramid pictured models the flow of energy in the African Savanna. Which consumer would receive the greatest amount of energy from producers?

• gazelle
• grasses
• mongoose
• lion

Tags

NGSS.MS-LS2-3