Food Webs and Energy Transfers End of Year Review

In a food web, which of the following organisms is a primary producer?

• Snake

• Grass

• Hawk

• Fungus

Tags

NGSS.MS-LS2-3

Which of the following best explains why there is less energy available at higher trophic levels in a food web?

• Energy is transferred more efficiently as you move up the food chain.

• Producers use all the energy available in an ecosystem.

• Only a small portion of energy is passed on from one trophic level to the next.

• Higher trophic levels consume more energy to survive.

Tags

NGSS.MS-LS2-3

Which of the following is a characteristic of the scientific method?

• It relies on opinions and personal beliefs.

• It uses systematic observations, experiments, and analysis.

• It can only be applied to natural sciences.

• It results in fixed truths that never change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

How does lightning help with nitrogen fixation?

• It breaks down nitrogen gas into oxygen and carbon dioxide.

• It changes nitrogen gas into a form that plants can use.

• It makes bacteria in the soil work faster.

• It causes nitrogen to mix with carbon dioxide.

Tags

NGSS.MS-LS2-3

In a food web, what role do ants play?

• Producer

• Primary consumer

• Secondary consumer

• Decomposer

Tags

NGSS.MS-LS2-3

If 1500 joules of energy is available to the producers, how much energy is typically available to the primary consumers (like ants) in a food web?

• 1500 joules

• 1000 joules

• 500 joules

• 150 joules

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

In a food web, which of the following is most likely to be a tertiary consumer?

• Ant

• Shrew

• Cougar

• Coral

Tags

NGSS.MS-LS2-3