Exploring Ecological Pyramids and Energy Transfer

What is the main purpose of an ecological pyramid?

• To depict the carbon cycle

• To display the relative amounts of energy, biomass, or number of organisms at each trophic level

• To show the food chain in an ecosystem

• To illustrate the water cycle

Tags

NGSS.MS-LS2-3

Which type of ecological pyramid shows the amount of energy available at each trophic level?

• Pyramid of energy

• Pyramid of matter

• Pyramid of numbers

• Pyramid of biomass

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What percentage of energy is lost each time you move up a trophic level in a pyramid of energy?

• 90%

• 75%

• 50%

• 10%

Tags

NGSS.MS-LS2-3

In a pyramid of biomass, what does each level represent?

• The amount of biomass consumed by the level above

• The total mass of all organisms

• The number of individual organisms

• The amount of energy available

Tags

NGSS.MS-LS2-3

What does a pyramid of numbers represent?

• The total biomass at each level

• The number of species in an ecosystem

• The amount of energy available at each level

• The number of individual organisms consumed by the level above

Which of the following is NOT a type of ecological pyramid?

• Pyramid of species

• Pyramid of energy

• Pyramid of biomass

• Pyramid of numbers