NBC 5 Flow of Energy

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

• The hawk 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 the eagle does.

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

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Analyze the positions of the plants and the animals in the food web pictured above. What type of impact could occur if there were a sudden decrease in the snake population?

• There would be a decrease in the number of shrews, rabbits, and mountain lions.

• There will be an increase in the number of rabbits and shrews.

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

• The mountain lion population will increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Use the grassland food web above to answer the following question. How is this ecosystem MOST likely to be affected by an increase in the number of rabbits?

• The amount of grass will increase.

• There will be more food for mice.

• The number of hawks will decrease.

• There will be more food for snakes.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Using the food web pictured, how many energy levels would be drawn in an energy pyramid?

• 5

• 6

• 3

• 4

Tags

NGSS.MS-LS2-3

What type of energy is required to begin the process of photosynthesis?

• chemical

• heat

• radiant

• mechanical

Tags

NGSS.MS-LS1-6

How does energy flow through ecosystems?

• energy is passed from one organism to the next as an organism is eaten.

• the sun passes all energy to all levels

• energy flows regardless if the animal or plant is eaten

• energy is transferred to all organisms no matter who eats what

Tags

NGSS.MS-LS2-3

Energy stored in foods is _____________; digested food releases ___________ energy for movement and ______________________ energy as heat.

• chemical, mechanical, thermal

• radiant, thermal, mechanical

• heat, mechanical, thermal

• mechanical, thermal, chemical

Tags

NGSS.MS-LS1-7

NGSS.MS-PS3-5

Which food web would BEST represent the flow of energy for the following feeding relationships? (draw it)

1. Insect larvae feed on white spruce (it's a tree)
2. Shrews and snowshoe hares (rabbits) are prey for lynx, red-tail hawks, and red foxes.
3. Snowshoe hares eat both willows (a tree) and white spruce (tree)
4. Shrews eat insect larvae
5. Red foxes sometimes eat insect larvae

• 
• 
• 
• 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

The equation above describes the chemical reaction that occurs during photosynthesis. What happens to the light energy that is shown in the reaction?

• It is destroyed during the reaction.

• It is released when the reaction is complete.

• It is converted into chemical energy during the reaction.

• It is changed into atoms of carbon and oxygen during the reaction

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

The level in an Ecological pyramid that includes all the organisms that share the same place in a food chain.

• Trophic Levels

• Toxic Levels

• KeKe Levels

• Environmental Systems

Tags

NGSS.MS-LS2-2