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In the visible light spectrum, which color has the shortest wavelength?

AViolet

BOrange

CYellow

DRed

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Sound waves are classified as which type of wave, based on how particles move relative to the wave’s direction of travel?

ALongitudinal waves

BTransverse waves

CStanding waves only

DElectromagnetic waves

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What is the approximate acceleration due to gravity near Earth’s surface?

A22 meters per second squared

B9.8 meters per second squared

C1.6 meters per second squared

D100 meters per second squared

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Which plant tissue is primarily responsible for transporting food, such as dissolved sugars produced during photosynthesis, throughout the plant?

AEpidermis

BPhloem

CXylem

DRoot hair cells

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Which plant tissue is primarily responsible for transporting water and dissolved minerals upward from the roots to the rest of the plant?

AEpidermis

BXylem

CPhloem

DCambium

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What term describes the movement of water molecules across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration?

AFiltration

BDiffusion

COsmosis

DActive transport

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Approximately what percentage of the average adult human body’s weight is made up of water?

AAbout 60 percent

BAbout 90 percent

CAbout 10 percent

DAbout 30 percent

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Besides providing a concentrated source of stored energy, what other important function do dietary fats serve in the body?

AProviding insulation and protecting internal organs

BProducing red blood cells

CRegulating heart rhythm directly

DDirectly transmitting nerve signals

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Which class of nutrients is primarily needed by the body for the growth and repair of tissues, such as muscles?

AVitamins

BProteins

CCarbohydrates

DFiber

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Which class of nutrients serves as the body’s primary and most readily available source of energy?

AVitamins

BWater

CCarbohydrates

DMinerals

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