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Which of the following interactions occur between the living organisms in an ecosystem. Select two.

• Plants perform photosynthesis, producing oxygen for animals

• Decomposers use carbon dioxide to break down organic matter.

• Animals from outside release carbon dioxide for photosynthesis.

• Decomposers break down dead organic matter and recycle nutrients.

• Plants recycle nutrients into the soil through their roots, benefiting other plants.

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NGSS.MS-LS2-3

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What would happen if there is no sunlight in an ecosystem?

• The plants would die due to a lack of carbon dioxide.

• The plants would gain more nutrients from decomposing matter.

• The plants would continue to grow using stored energy from the soil

• The plants would stop photosynthesizing and the oxygen level would drop.

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

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Which factors would you consider when designing an ecosystem? Select three.

• Providing a balanced amount of light for photosynthesis

• Introducing additional plants to increase oxygen production

• Regularly removing waste products produced by the animals

• Maintaining a stable temperature to support organisms’ survival

• Ensuring there is a way for decomposers to recycle nutrients

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NGSS.MS-LS2-3

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What is the best evidence that shows how matter cycles in an ecosystem?

• In each model, there is an unknown substance after photosynthesis.

• Matter like carbon dioxide from the air is going into the plants during photosynthesis.

• Plants use photosynthesis and cellular respiration to rearrange molecules to store and release energy.

• Light energy from the Sun is seen entering the plant chloroplasts so the plants can undergo photosynthesis.

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of these claims is supported by a car in motion?

• As energy is transferred by a greater force of friction, kinetic energy decreases.

• B. As energy is transferred by a greater force of friction, the kinetic energy increases.

• C. As energy is transferred by a greater force of friction, the kinetic energy of the car does not change.

• D. As energy is transferred by a greater force of friction, the kinetic energy of the car remains zero the whole time.

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NGSS.MS-PS3-5

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Arrange in order from oldest to youngest.

Ammonite, Gastropod, Fern and Trilobites

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NGSS.MS-ESS1-4

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When friction is applied to the wheels, it creates a force opposite to the wheel's rotation, slowing the spinning of the wheel. Which statement explains what is happening as brakes are applied when the cars are launched?

• A. Potential energy builds up as the cars move faster.

• B. Potential energy is transferred from the car's wheels.

• C. Kinetic energy of the car increased with added friction.

• D. Kinetic energy from the wheels is transferred to the brakes.

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NGSS.MS-PS3-5

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Which statement describes the relationship between genes and proteins?

• The order of proteins determines the structure of genes.

• The sequence of genes determines the structure of the protein.

• The number of genes determines which proteins will be produced.

• The number of proteins determines which genes will be produced.

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NGSS.MS-LS3-1

Select the best explanation that explains the mutation of hemoglobin.

• A. Changes in genes, which always impact protein structure, do not affect the organism.

• B. Changes in genes, which always impact protein structure and function, positively impact the organism and allow it to survive better.

• C. Changes in genes, which may impact protein structure and function, always result in negative impacts to the organisms, like with this mutation to hemoglobin.

• D. Changes in genes can result in positive, neutral, or negative effects on the organism, but this mutation to hemoglobin would negatively impact the person.

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NGSS.MS-LS3-1

Which statement best describes the factors that affect the orbits of the planets in our solar system?

• Planets move in different directions generating different forces of gravity.

• Balance between planetary motion and gravity keeps the planets orbiting the Sun.

• Planetary orbits are the result of gravitational forces pushing them away from the Sun.

• Gravity keeps the Sun in the center of the solar system by pushing equally in all directions.

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NGSS.MS-ESS1-1

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