NGSS.HS-LS2-3

What does a food web represent?

• All connections of energy flow throughout all organisms in a habitat.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

Tags

NGSS.HS-LS2-3

Which of the following best explains why there are usually no more than five trophic levels in a food chain?

• there are not enough organisms to fill more than five levels
• there is too much competition among the organisms at the lower levels to support more animals at higher levels
• the statement is not true; there can be unlimited amount of trophic levels
• energy is lost at each trophic level

Tags

NGSS.HS-LS2-3

In the energy pyramid shown, which organism has the least amount of biomass?

• Producers
• Herbivores
• Carnivores
• Top Predator

Tags

NGSS.HS-LS2-3

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-LS2-3

Which greenhouse gas is produced by the microbes in landfills?

• oxygen

• carbon dioxide

• carbon monoxide

• methane

Tags

NGSS.HS-LS2-3

On a food web, the arrows show...

• what eats what.

• where the energy is going.

• what each organism hunts.

• who is friends with whom.

Tags

NGSS.HS-LS2-3

Which factors are primarily responsible for decomposition of organic materials in soil?

• Animal action and plant action

• Animal action alone

• Fungus action, animals, and microorganisms

• Fungus action alone

• Microorganisms alone

Tags

NGSS.HS-LS2-3

Bacteria that use oxygen

• Aerobic

• anaerobic

Tags

NGSS.HS-LS2-3

Organisms not require energy because it flows among organism and their environment.

• False

• True

Tags

NGSS.HS-LS2-3

Decomposition is found during which of the following cycles?

Choose all the apply.

• Phosphorus

  Cycle

• Carbon

  Cycle

• Nitrogen

  Cycle

• Water Cycle

Tags

NGSS.HS-LS2-3