| 单词 | food web |
| 释义 | > as lemmasfood web food web n. Ecology a system of overlapping and interdependent food chains; cf. food cycle n. ΘΚΠ the world > life > biology > balance of nature > organisms in interrelationship > [noun] > food chain food cycle1881 food chain1920 food web1932 trophic level1942 trophic chain1946 1932 W. C. Allee Animal Life & Social Growth i. 8 At only the second step in what we may call a food-web, we find the black bass related to every class of animals, to many plants and to decaying animal and plant materials in the mud of the lake bottom. 1985 Cambr. Encycl. Life Sci. vii. 185/1 The majority of kelp-forest production enters the food-web in the form of detritus. 2003 Sci. Amer. July 37/2 The various layers of the food web, called trophic levels, are ranked according to how many steps they are removed from the primary producers at the base of the web, which generally consists of phytoplanktonic algae. < as lemmas |
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