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What type of waves start when a source of energy causes a disturbance in the medium?

asked Jan 8 in Science by LawerenceSig (250 points)

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Why are eutherian mammals sometimes called placental mammals?

asked Jan 8 in Science by SantosGleaso (350 points)

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Which factor causes a cannon ball to move horizontally and then fall on the ground?

asked Jan 8 in Science by TuyetJeffers (350 points)

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What type of gases are the least reactive of all elements?

asked Jan 8 in Science by EdmundoOjeda (230 points)

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What type of doctor specializes in the laboratory detection of disease?

asked Jan 8 in Science by SherlynC1382 (550 points)

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Where in the cell does photosynthesis occur?

asked Jan 8 in Science by DollyRocher (290 points)

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Where does visible light fall in between on the electromagnetic spectrum?

asked Jan 8 in Science by EldenNobbs11 (550 points)

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What were the first particles with mass to be directly confirmed to have the wavelength proposed by de broglie?

asked Jan 8 in Science by FlynnO086966 (350 points)

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What needs to happen to temperature to cause pressure to increase dramatically?

asked Jan 7 in Science by ShellaHeyes3 (390 points)

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What structure is found at the top of the head of the sperm that helps it penetrate and fertilize the egg?

asked Jan 7 in Science by VernellVaugh (430 points)

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What weather term describes what the temperature feels like when the wind is taken into account?

asked Jan 8 in Science by KeeleyGame0 (410 points)

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Which constellation looks like a rectangle high in winter's south-southeastern sky?

asked Jan 8 in Science by ElanaHenness (370 points)

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What type of compound is hydrogen chloride?

asked Jan 8 in Science by Emerson1291 (510 points)

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Which human body system is a complex network of nervous tissue that carries electrical messages throughout the body?

asked Jan 8 in Science by AubreyCato6 (130 points)

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Which common oxidizing agent can be used to oxidize alcohols?

asked Jan 8 in Science by JoyMarkley53 (610 points)

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Which chemical element is the basis of all life on earth?

asked Jan 8 in Science by TangelaPrinc (570 points)

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Where do biochemical reactions occer?

asked Jan 8 in Science by MaryjoHerr4 (270 points)

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What type of species have a large effect on the balance of organisms in an ecosystem?

asked Jan 8 in Science by DannyBoss218 (390 points)

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Which carbohydrates can be classified in terms of chain length?

asked Jan 8 in Science by KAULeora045 (610 points)

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Which water from the equator mixes with cold water from the poles?

asked Jan 8 in Science by BlakeCarrier (390 points)

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