资料来源 : pyDict

世代交替,异形生殖,自然发生

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Heterogenesis \Het`er*o*gen"e*sis\, n. [Hetero- + genesis.]
   1. (Biol.) Spontaneous generation, so called.

   2. (Biol.) That method of reproduction in which the
      successive generations differ from each other, the parent
      organism producing offspring different in habit and
      structure from itself, the original form, however,
      reappearing after one or more generations; -- opposed to
      {homogenesis}, or {gamogenesis}.

资料来源 : WordNet®

heterogenesis
     n : the alternation of two or more different forms in the life
         cycle of a plant or animal [syn: {alternation of
         generations}, {xenogenesis}]