LS2-4

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

• 80%

• 90%

• 10%

• 20%

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-3

The primary consumer in this food chain is the ____________.

• Frog

• Eagle

• Grasshopper

• Python

Tags

NGSS.HS-LS2-4

A hawk eats a mouse that lived in an ecosystem where there is 10,000 kcals of energy in the insect population the mouse consumes. How much energy, in kcals, moves up to the trophic level the hawk is in?

• 1 kcals

• 10 kcals

• 100 kcals

• 1000 kcals

Tags

NGSS.HS-LS2-4

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.HS-LS2-4

In the energy pyramid pictured here, if the producers generate 100 units of energy, how much of that energy would be passed on to the herbivores?

• 100 units

• 50 units

• 10 units

• 1 unit

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-3

If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?

• 10Kcal

• 1Kcal

• 100Kcal

• 1000Kcal

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-3

When energy is passed in an ecosystem from one trophic level to the next, only ___ percent of the energy will be passed on.

• 1000

• 100

• 1

• 10

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-3

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

• 1%

• 10%

• 100%

• 1000%

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-3

If grass stores 1,000 energy units received from the sun, the ecological efficiency of the ecosystem is 10%, and the trophic levels are grass ® cow ® human, how many units of energy does the human receive of the original 1,000 units?

• 900

• 200

• 100

• 10

• 1

Tags

NGSS.HS-LS2-4

If the producers in an ecosystem receive 32000 kcal of energy, approximately how much energy will go to the primary consumers?

• 3200 kcal

• 320 kcal

• 32 kcal

• 3.2 kcal

Tags

NGSS.HS-LS2-4