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chapter 14 vocab

Chapter 14: vocab

TermDefinition
biogenesis the scientific principle that living organisms come only from other living organisms
coacervate a mass of droplets of colloidal substances such as lipids, amino acids, and sugars, that are held together by electrostatic attraction
endosymbiosis a mutually beneficial relationship in which one organism lives within another; a theory that eukaryotic cells originated through endosymbiotic relationships between ancient prokaryotic cells
half-life the time required for half of a sample of a radioactive isotope to break down by radioactive decay to form a daughter isotope
microsphere a microscopic spherical structure composed of many protein molecules that are organized as a membrane
radioactive decay the disintegration of an unstable atomic nucleus into one or more different nuclides, accompanied by the emission of radiation, the nuclear capture or ejection of electrons, or fission
sopntaneous generation an early and now disproved theory that living organisms come to like spontaneously from nonliving material
Created by: campbellm19
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