| 单词 | sex cell |
| 释义 | > as lemmassex cell sex cell n. Biology a reproductive cell, either male or female in function; a gamete (sperm or egg cell), or a cell which gives rise to gametes. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > reproductive cell sexual cell1860 oocyst1875 thelyblast1877 sex cell1889 1889 P. Geddes & J. A. Thomson Evol. Sex 91 Very commonly the sex-cells originate in the ectoderm and ripen there. a1933 J. A. Thomson Biol. for Everyman (1934) I. i. 11 Sexual multiplication by means of special germ-cells or sex-cells is much more economical. 1999 Independent 27 May i. 9/8 Scientists believe the sex cells, or germ line, in the gonads monitor levels of reproduction and send out signals that cause the ageing of highly fertile worms. < as lemmas |
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