7th Grade Reg/ Adv- Final Review

How does the speed of light change when it moves from air to water?

• It speeds up.

• It slows down.

• It remains the same.

• It stops.

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What is the function of the cell membrane?

• Controls all cell activity

• Creates lipids and hormones

• Allows select materials to pass in and out of the cell

• Produces food by converting energy from the sun

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What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

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How does natural selection drive evolution?

• It does not; natural selection and evolution are entirely separate processes

• Before they can reproduce, individuals must adapt certain traits through natural selection.

• Within a generation, natural selection causes populations to eliminate unfavorable traits.

• Over time, natural selection causes living populations to evolve environmental adaptations.

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What is a convection current?

• Air that moves in an upward direction only resulting from temperature differences.

• Air that moves in a downward direction only resulting from temperature differences.

• A circulating flow of air or water resulting from temperature differences.

• A circulating flow of air or water resulting from temperatures that are exactly the same.

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Which term describes an organism's ability to maintain a stable internal environment?

• Cellular respiration

• Extinction

• Homeostasis

• Locomotion

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Which of the following is a characteristic of commensalism?

• Both species are harmed.

• One species benefits while the other is harmed.

• One species benefits while the other is unaffected.

• Both species benefit.

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What is the primary force that drives the movement of tectonic plates on Earth?

• Gravity

• Convection currents in the mantle

• Wind

• Ocean currents

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All of the fossils that have been discovered on Earth are called the _.

• fossil show

• fossil record

• coprolite

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Explain how the rock cycle is an example of the law of conservation of energy.

• Rocks are destroyed and disappear.

• Energy is neither created nor destroyed but transformed in processes like melting and erosion.

• Rocks are created from nothing.

• Energy is lost when rocks are weathered.

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