Energy Flow in Ecosystem

Which population of organisms would contain the least amount of biomass based on the food chain shown?

• Plants

• Insects

• Lizards

• Snakes

Tags

NGSS.MS-LS2-3

Why are pyramids the shape that is used to depict the relative amounts of biomass at each trophic level?

• All of the food is converted into heat at each trophic level

• Energy is distributed equally amongst all the trophic levels

• Each trophic level supports a smaller amount of biomass

• Organisms get larger in each successive trophic level

Tags

NGSS.MS-LS2-3

What vital role do decomposers play in an ecosystem?

• Decomposers convert solar energy into chemical energy.

• Decomposers recycle nutrients within the ecosystem.

• Decomposers compete with herbivores for resources.

• Decomposers provide oxygen gas to other consumers.

Tags

NGSS.MS-LS2-3

If there is 10,000 kJ of energy available in the producer population, how many kilojoules of energy would be found in the carnivore population?

• 10,000 kJ

• 1,000 kJ

• 100 kJ

• 10kJ

Tags

NGSS.MS-LS2-3

Which organism would most likely be found at the bottom of a biomass pyramid that represented an aquatic ecosystem?

• aquatic insects

• zooplankton

• phytoplankton

• whales

Which organism would most likely be found at the bottom of a biomass pyramid that represented an aquatic ecosystem?

• aquatic insects

• zooplankton

• phytoplankton

• whales

Where do the plants in this pyramid get their energy from?

• the sun

• insects

• spiders

• decomposers

Tags

NGSS.MS-LS1-6

What percentage of the energy available in the plant population will reach the sparrow population based on the food chain shown?

• 10%

• 1%

• 0.1%

• 0.01%

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which population in the food web above would contain the least chemical energy?

• Plants

• Aphids

• Spiders

• Sparrows

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which population would be found at the bottom of a biomass pyramid?

• Plants

• Aphids

• Spiders

• Sparrows

Tags

NGSS.MS-LS2-3