Energy Flow

Match the grassland organism to its category.

• Secondary Consumer

• 
• Producer

• 
• Tertiary Consumer

• 
• Apex Predator

• 
• Primary Consumer

• 

Tags

B

If a disease were to affect the snakes in the food chain, what will be the initial (beginning) effect on the populations of hawks and rabbits?

• The populations of hawks and rabbits will decrease.

• The populations of hawks and rabbits will increase.

• The population of hawks will increase. The population of rabbits will decrease.

• The population of hawks will decrease. The population of rabbits will increase.

Label the following:

a

b

c

d

Secondary consumer

Producer

Tertiary consumer

Primary consumer

​ How much energy would be found in the top-level consumers in the pyramid, based on the flow of energy between trophic levels?

b

c

d

a

450 J

45 J

45,000 J

4,500 j

Which trophic level in this energy pyramid has the LEAST amount of energy? (choose one answer)

Look at the diagram of the food web. Which TWO roles can the Hawk occupy? (Choose 2 correct answers)

• Primary consumer

• Secondary consumer

• Tertiary consumer

• Quaternary consumer

• Producer

What happens to the amount of available energy in the pyramid as it moves up through the different levels?

• it increases

• it decreases

• it remains the same

• it returns to the sun

How many organisms in this food web eat only producers? Enter only a number.

A partial food web is shown. The numbers in the boxes represent animals in the food web. Which organisms have three carnivorous predators and a consumer-producer relationship with at least on organism?

• The organisms that fit in boxes 2, 3 and 7

• The organisms that fit in boxes 5 and 7

• The organisms that fit in boxes 4 and 6

• The organisms that fit in boxes 2 and 7 only

A partial mountain forest food web is shown. Which statement does NOT describe a relationship shown in the food web?

• Elk are prey for mountain lions

• Mice are herbivores that consume grasses and are preyed on by snakes

• Owls prey on rabbits and frogs

• Rabbits consume shrubs and are parasites of grasses