the alternation of two or more different forms in the life cycle of a plant or animal同义词:alternation of generations, heterogenesis
详细解释: xen.o.gen.e.sis n.(名词) The supposed production of offspring markedly different from either parent. 异种生殖:生出与父母体完全不同的机体的假想 See alternation of generations 参见 alternation of generations 【引伸】 xen.ogenet.ic