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monogenesis n. 一元發生說 一元發生說 monogenesis n 1: asexual reproduction by the production and release of spores [synonym: {monogenesis}, {sporulation}] Monogenesis \Mon`o*gen"e*sis\, n. [Mono- genesis.]
1. Oneness of origin; esp. (Biol.), development of all beings in the universe from a single cell; -- opposed to {polygenesis}. Called also {monism}. --Dana. --Haeckel. [1913 Webster] 2. (Biol.) That form of reproduction which requires but one parent, as in reproduction by fission or in the formation of buds, etc., which drop off and form new individuals; asexual reproduction. --Haeckel. [1913 Webster] 3. (Biol.) The direct development of an embryo, without metamorphosis, into an organism similar to the parent organism; -- opposed to {metagenesis}. --E. van Beneden. [1913 Webster]
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