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7th Grade: 7th Grade Word List: Science (List 1) |
carbon cycle
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a thermonuclear reaction in the interior of stars; the organic circulation of carbon from the atmosphere into organisms and back again |
density
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thickness; quantity of something per unit measure, especially per unit length, area, or volume |
homeostasis
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metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset disrupting changes |
mitosis
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cell division in which the nucleus divides into nuclei containing the same number of chromosomes |
osmosis
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diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal |
respiration
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breathing; process of inhaling and exhaling; oxidative process occurring within living cells |
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