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What color is the brittle metalloid tallurium?

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What has high surface tension because of extensive hydrogen bonding?

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What color is neptune?

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What do cells of dermal tissue secrete?

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What is a common chemical substance on planet earth?

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What chemical affects the onset of puberty and duration?

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What element is released into the atmosphere by the burning of fossil fuels?

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What do plasmodesmata connect to in the plant cell?

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What happens to the volume of a gas as the kelvin temperature increases?

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What cause the rippled surface of the ocean?

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What category of food includes sugars, starches and fibers?

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What catalyzes the hydrolysis of amino acids from the n-terminal end of a protein?

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What happens to the mass number during a nuclear decay process by positron emission?

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What catalyst substances may also allow reactions to occur by different pathways that have lower activation energy?

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What do obligate aerobes need to live?

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What biome is located between the temperate and tropical biomes?

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What can sodium ions not pass through?

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What begins approximately six weeks after fertilization in an embryo?

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What cycle is frequency measured in per second?

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What can protons and neutrons be broken down into?

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