Select the correct answer from each drop-down menu.

What is the source of energy in our ecosystem?

In our ecosystem, the ________ is the source of all energy. In terms of the ecological pyramid, _____ of energy is passed from one level to next level.

• air

• Sun

• water

• 10%

• 50%

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Type the correct answer in the box. Spell all words correctly.

What are raccoons?

Raccoons feed on dead animals. Thus, they are decomposer animals known as _______________.

Tags

NGSS.MS-LS2-3

Type the correct answer in the box. Spell all words correctly.

Which pyramid represents the dry weight or the organic matter in the species in each trophic level?

The pyramid of ____________ represents the dry weight or the organic matter in the species in each trophic level.

Type the correct answer in the box. Spell all words correctly.

How does the environment produce biomass energy?

The environment produces biomass energy through a process called _________________.

Tags

NGSS.MS-LS1-6

Select the correct text in the passage.

Which sentences describe decomposers in a food chain?

• They are the final link in the energy flow in a food chain or a food web. They are fungi and animals that feed on dead organic matter.

• Plants produce food or energy from raw materials.

• Plants are also known as autotrophs because they can produce organic compounds from inorganic chemicals.

• Bacteria, fungi, worms, and snails recycle the garbage of dead matter and give back nutrients into the ecosystem.

Tags

NGSS.MS-LS2-3

Match each food chain and web component to the correct image.

decomposer

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• 
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Tags

NGSS.MS-LS2-3

Match each food chain and web component to the correct image.

secondary consumer

• 
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• 
• 

Tags

NGSS.MS-LS2-3

Match each food chain and web component to the correct image.

producer

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• 
• 

Match each food chain and web component to the correct image.

primary consumer

• 
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• 
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Where in the food chain will you place a shark?

• producers

• primary consumers

• secondary consumers

• decomposers

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3