1.10 Energy Flow & 10% Rule

Determine how the energy decreases as it flows through ecosystems. Explain using the 10% rule.

• Energy decreases by 10% at each trophic level.

• Energy decreases by 90% at each trophic level.

• Energy remains constant at each trophic level.

• Energy increases by 10% at each trophic level.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Fill in the blank: The loss of energy that occurs when energy moves from lower to higher trophic levels can be explained through the laws of ____.

• thermodynamics

• gravity

• motion

• electricity

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is biomass in an ecosystem measured in terms of?

• Volume

• Biomass (dry weight)

• Energy

• Temperature

Tags

NGSS.HS-LS2-4

Fill in the blank: The amount of biomass present in an ecosystem at a particular time is known as _______.

• Standing Crop

• Biomass Density

• Ecosystem Mass

• Biological Load

What is one source of biomass shown in the diagram?

• Wood

• Coal

• Natural Gas

• Oil

Tags

NGSS.MS-LS1-6

Which of the following is a source of biomass?

• Sewage

• Plastic

• Metal

• Glass

Tags

NGSS.MS-LS1-6

Name a type of residue that contributes to biomass according to the diagram.

• Agricultural residue

• Industrial residue

• Municipal solid waste

• Forest residue

Tags

NGSS.MS-LS2-3

Which of the following is not a source of biomass?

• Agricultural Crops & Residues

• Forestry Crops & Residue

• Municipal Solid Waste

• Fossil Fuels

Identify a source of biomass related to animals from the diagram.

• Animal waste

• Plant residue

• Fossil fuels

• Solar energy

Tags

NGSS.MS-LS2-3

According to the diagram, which of these is a source of biomass?

• Industrial Residues

• Electronic Waste

• Nuclear Waste

• Chemical Waste