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asked Jan 6 in Science by FosterDibell (230 points)

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What is the term for matter that does not let any light pass through it, whether it absorbs light, reflects light, or does both?

asked Jan 7 in Science by CarolineConr (480 points)

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What is the term for a particle outside the nucleus of an atom that has a negative electric charge?

asked Jan 7 in Science by VilmaOlivas5 (430 points)

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What do muscles need to contract?

asked Jan 6 in Science by RickieJuan39 (530 points)

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What happens to temperature in the troposphere as the altitude increases?

asked Jan 6 in Science by AvisHueber43 (530 points)

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What is the term for long carbohydrate molecules of repeated monomer units joined together by glycosidic bonds?

asked Jan 7 in Science by DarrinPokorn (410 points)

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What is the temperature at which condensation of water vapor occurs called?

asked Jan 7 in Science by SherriBiaggi (690 points)

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What can prevent the passage of molecules and ions between cells, such as in the blood-brain barrier?

asked Jan 6 in Science by ShirleySteer (450 points)

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What is electrons in the highest occupied principal energy level of an atom called?

asked Jan 6 in Science by CedricCurrey (370 points)

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What astronomical phenomenon is often comprised of remnants of the earliest material that formed in the solar system?

asked Jan 6 in Science by CheriFrw2570 (230 points)

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What is the general shape of centrioles?

asked Jan 7 in Science by AmandaTauche (470 points)

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What do we call the energy-rich product of photosynthesis?

asked Jan 6 in Science by LudieEcd5711 (530 points)

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What is the common measure of how hot or cold something is?

asked Jan 6 in Science by BritneyVer98 (910 points)

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What is a hydrocarbon in which there are only single covalent bonds?

asked Jan 6 in Science by BerylSantiag (470 points)

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What is the fourth planet from the sun?

asked Jan 7 in Science by RosalindOste (450 points)

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What is a hole that is dug or drilled through the ground down to an aquifer called?

asked Jan 6 in Science by KathiAntonio (510 points)

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What do you call the relationship in which members of one species consume members of another species?

asked Jan 6 in Science by Earnest11501 (570 points)

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What is the body cavity that reptiles have that is involved in reproduction?

asked Jan 6 in Science by MadelineRobe (770 points)

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What is it called when multiple faults are located in close proximity to one another?

asked Jan 6 in Science by Mckenzie2132 (310 points)

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What is the term for a theoretical framework for describing evolutionary change in populations through the change in allele frequencies?

asked Jan 7 in Science by EmilPeeples5 (510 points)

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