| 单词 | alternation of generations |
| 释义 | alternation of generationsnoun [mass noun] Biology A pattern of reproduction occurring in the life cycles of many lower plants and some invertebrates, involving a regular alternation between two distinct forms. The generations are alternately sexual and asexual (as in ferns) or dioecious and parthenogenetic (as in some jellyfishes).Like plants and many protists, brown algae undergo a complex life cycle involving alternation of generations....
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