Energy Pyramid Review

In the food web, why are the grasses and shrubs considered producers?

• They consume other organisms for energy.

• They convert sunlight into glucose through photosynthesis.

• They decompose organic matter.

• They are at the top of the food chain.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What effect would a decline in the mouse population have on predators?

• An increase in deer population

• A decrease in tiger population

• An increase in owl population

• A decrease in eagle population

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What concept is demonstrated by the energy transfer shown in the graph?

• 10% rule, 90% of energy is lost as “heat” each time it is transformed.

• 90% rule, energy is destroyed

• 10% rule, energy increases by 10% as you move up the food chain

• 90% rule, energy is gained each time it is transformed

Tags

NGSS.MS-LS2-3

If 5 kJ of energy is available to the organisms in trophic level W in the pyramid, how much energy is available to the secondary consumers?

• 0.5 kJ

• 50 kJ

• 500 kJ

• 5000 kJ

Tags

NGSS.MS-LS2-3

If the first trophic level has 6,000 J of energy, which model best represents the energy available at each subsequent trophic level?

• 6,000 J → 600 J → 60 J → 6 J

• 6,000 J → 5,000 J → 4,000 J → 3,000 J

• 6,000 J → 3,000 J → 1,500 J → 750 J

• 6,000 J → 5,500 J → 5,000 J → 4,500 J

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What is the primary role of decomposers in an ecosystem?

• To break down dead organic matter

• To provide shelter for other organisms

• To produce energy through photosynthesis

• To compete with primary consumers

Tags

NGSS.MS-LS2-3

Which of the following best describes the energy flow in an ecosystem?

• Energy flows in a circular pattern

• Energy flows in a linear, one-way direction

• Energy is recycled back to the sun

• Energy is stored indefinitely in organisms

Tags

NGSS.MS-LS2-3

How does the energy available to tertiary consumers compare to that available to primary consumers?

• It is not related to the energy available to primary consumers

• It is less than that available to primary consumers

• It is the same as that available to primary consumers

• It is greater than that available to primary consumers

Tags

NGSS.MS-LS2-3

In the energy pyramid below, which organism has the most amount of energy available?

• Producers

• Herbivores

• Carnivores

• Top Predator

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Name the correct trophic level for level 1.

• Tertiary

• Consumer

• Producer

• Quatemary

Tags

NGSS.MS-LS2-3