Energy and Matter

The flow of energy between organisms can be shown using a pyramid shape because:

• There is more energy at the top than at the bottom

• There is more energy at the bottom than at the top

• Energy is lost as you move up the pyramid

• Both B and C

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NGSS.MS-LS2-3

Why are animals important to the process of photosynthesis?

• Animals eat plants, which makes space for more plants to grow.

• Animals digest food, which provides the starting materials for photosynthesis.

• Animals release carbon dioxide, which provides the starting materials for photosynthesis.

• Animals produce energy in the form of heat, which is necessary for photosynthesis to occur.

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NGSS.MS-LS1-6

How do organisms get the energy they need?

• Plants get energy from fertilizers, and animals get energy by drinking water.

• Plants get energy from glucose produced in the soil, and animals get energy directly from the sunlight.

• Plants do not require energy because they do not move, and animals get energy by performing exercise.

• Plants break down the glucose produced in photosynthesis, and animals get energy from eating other organisms.

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What is an organism called that feeds on another organism?

• consumer

• scavenger

• producer

• decomposer

An organism that makes its own food is known as

• consumer
• scavenger
• producer
• decomposer

Uses dead plants and animals for energy.

• worm
• grass
• rabbit
• none

Tags

NGSS.MS-LS2-3

If there were no decomposers, which of the following would most likely happen?

• Animals would start performing photosynthesis.

• Plants and animals would remain living for a longer period of time.

• The amount of dead animal matter would decrease.

• Plants would lack nutrients they receive from decomposers.

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An organism that return matter from dead plants and animals back to the soil is called a ____________?

• carnivore

• decomposer

• herbivore

• omnivore

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NGSS.MS-LS2-3

What are the products of photosynthesis?

• water and carbon dioxide
• oxygen and glucose
• oxygen and carbon dioxide
• oxygen and water

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NGSS.MS-LS1-6

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Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + Sugar

• CO₂ + sugar + H₂O --> O₂ + light

• O₂ + light + H₂O --> CO₂ + Sugar

• CO₂ + O₂ + H₂O --> Light+ Sugar

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NGSS.MS-LS1-6

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