Unit 8 Review

What does a trophic level represent in a food chain?

• A group of organisms that eat the same food
• A level of an energy pyramid
• A population of one species
• The number of species in an ecosystem

Tags

NGSS.MS-LS2-2

Which organism is found at the base of an energy pyramid?

• Herbivore
• Carnivore
• Producer
• Omnivore

Tags

NGSS.MS-LS2-3

What happens to energy as it moves up an energy pyramid?

• It increases
• It remains the same
• It decreases
• It is recycled

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What type of organism gets energy by eating producers?

• Decomposer
• Carnivore
• Herbivore
• Producer

Which of the following best describes a decomposer’s role in an ecosystem?

• They produce energy
• They recycle nutrients
• They store energy
• They compete with herbivores

Tags

NGSS.MS-LS2-3

Why do energy levels decrease in higher trophic levels?

• Energy is destroyed
• Energy is used by organisms for life processes
• Organisms at higher levels eat less
• The sun provides less energy

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

What is the original source of energy for most ecosystems?

• Soil
• Water
• Sun
• Plants

Tags

NGSS.MS-LS1-6

Which of the following is a primary consumer?

• Grass
• Mouse
• Hawk
• Bacteria

Tags

NGSS.MS-LS2-3

What role do producers play in the flow of energy?

• They break down dead organisms
• They use energy from the sun to make food
• They eat herbivores
• They feed on other producers

Tags

NGSS.MS-LS2-3

What percent of energy is typically passed to the next trophic level?

• 0.9
• 0.5
• 0.1
• 1.0

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6