What's the difference between monogenesis and polygenesis?

Monogenesis


Definition:

  • (n.) Oneness of origin; esp. (Biol.), development of all beings in the universe from a single cell; -- opposed to polygenesis. Called also monism.
  • (n.) 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.
  • (n.) The direct development of an embryo, without metamorphosis, into an organism similar to the parent organism; -- opposed to metagenesis.

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Polygenesis


Definition:

  • (n.) Alt. of Polygeny

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