Energy in the Ecosystem

There are 40,000g of biomass energy available on trophic level one. How much energy is available for the tertiary consumer?

• 400,000g

• 4,000g

• 400g

• 40g

• 4g

Tags

NGSS.MS-LS2-3

Which organism is a top consumer in this food web? Pick all that apply

• rabbit

• owl

• bird

• fox

• carrot

Tags

NGSS.MS-LS2-3

There are 40,000g of biomass energy available on trophic level one. How much energy is available for the secondary consumer?

• 400,000g

• 4,000g

• 400g

• 40g

• 4g

Tags

NGSS.MS-LS2-3

Who is on the third energy level?

• leaf

• catepillar

• chamelon

• snake

• mongoose

Tags

NGSS.MS-LS2-3

Drag and drop the amount of calories that will be available to organisms at each level in the pyramid.

a

b

c

d

1,000Cal

1 Calorie

100 Cal

10 Cal

Tags

NGSS.MS-LS2-3

Label the energy pyramid

d

a

b

c

secondary consumer

tertiary consumer

primary consumer

producer

Tags

NGSS.MS-LS2-3

Represented by 'X' in the diagram, ​ (a)   is lost to the environment at each trophic level of this ecosystem.

• heat

• nutrients from the soil

• living space for the organisms

• food sources

Tags

NGSS.MS-LS2-3

What is the total amount of energy lost between the producers and the secondary consumers?

Mathematical Equivalence

ON

Answer explanation

Producers have 20000 kcal. Secondary consumers have 200 kcal. The difference is 19800 kcal. This energy is lost.

Tags

B

Match the following statements with the correct description of energy flow in a pyramid.

• As energy moves up the pyramid, the amount of available energy...

• it remains the same

• In a typical energy pyramid, the energy available at higher trophic levels...

• it decreases

• When considering energy transfer in a pyramid, the energy at each level...

• it increases

Tags

NGSS.MS-LS2-3

How much energy is transferred from one trophic level to the next?​ (a)  

• 10%

• 5%

• 15%

• 20%

• 50%

Tags

NGSS.MS-LS2-3