7th Science Final Test 2024

What is an organism that can make its own food called?

• Producer

• Consumer

• Carnivore

• Herbivore

What do we call an organism that obtains energy by feeding on other organisms?

• Producer

• Consumer

• Herbivore

• Carnivore

What is an organism that breaks down biotic wastes and dead organisms and returns nutrients back in the ecosystem called?

• Scavenger

• Decomposer

• Omnivore

• Gross

Can energy ever be created or destroyed?

• Yes

• No

What do we call the circulation of carbon through the atmosphere to organisms and back again?

• Water cycle

• Carbon cycle

• Oxygen cycle

• Nitrogen cycle

What do we call all of the nonliving and living factors that interact?

• Ecosystem

• Ecology

• Habitat

• Niche

How much energy is transferred from one trophic level to the next in an energy pyramid?

• 90%
• 50%
• 10%
• All of it

What is the only process that removes carbon from the atmosphere?

• combustion
• cellular respiration
• photosynthesis
• decomposition

What is the largest reservoir for nitrogen?

• the ocean

• rocks and minerals

• the atmosphere

• bacteria

What is the largest reservoir for water?

• the ocean

• rocks and minerals

• the atmosphere

• glaciers