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General
General nature or nature terms.
Industry: Natural environment
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General
palynology
Biology; General
The study of palynomorphs and other acid-resistant microfossils usually produced by plants, protists, and fungi.
placental mammals
Biology; General
One of three groups of mammals that carry their young in the mother's body for long periods during which the fetus is nourished by the placenta. Humans are placental mammals.
punctuated equilibrium
Biology; General
A model that holds that the evolutionary process is characterized by long periods with little or no change interspersed with short periods of rapid speciation.