| 单词 | alternate generation |
| 释义 | > as lemmasalternate generation alternate generation n. Biology each of the two distinct forms which succeed one another in the life cycle of an organism which undergoes alternation of generations; (also) the occurrence of such a succession of forms (= alternation of generations n. at alternation n. Phrases). ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > types of reproduction > [noun] > alternate generation alternate generation1841 alternation of generations1845 metagenesis1849 heterogenesis1863 heterogamy1884 heterogeny1886 heterogony1906 1841 T. R. Jones Gen. Outl. Animal Kingdom xxi. 374 The alternate generations are quite dissimilar both in conformation and habits. 1858 G. H. Lewes Sea-side Stud. 293 The doctrine of Alternate generations has been persistently denied. 1912 New Phytologist 11 216 The appearance of a free-living spore-bearing alternate generation. 1974 W. Condry Woodlands iv. 59 As with the oak apple there is an alternate generation. This is reared from tiny inconspicuous galls attached to oak catkins. 2002 C. de Duve Life Evolving xi. 164 Evolution has composed many variations on the basic theme of alternate generation. < as lemmas |
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