| 词汇 | gastropod |
| 释义 | gastropod noun[ C ] biology specializeduk /ˈɡæs.trəʊ.pɒd/ us /ˈɡæs.trə.pɑːd/ a type of animal with no spine, a soft body with a flat base used for moving, and often a shell, for example a snail or a slug软体无脊椎动物（腹部扁平，用于爬行，通常有壳，比如蜗牛或蛞蝓） Worms, snails, slugs & similar animals annelid centipede earthworm echinococcus escargot fluke hookworm leech limacine millepede minibeast nematode pill bug roly-poly roundworm slug snail woodlouse worm gastropod | American Dictionarygastropod noun[ C ] us/ˈɡæs·trəˌpɑd/ biology any of a group of animals with soft, flat bodies, no legs, and often a shell, for example, a snail or slug Examples of gastropodgastropod The probability of a marine gastropod being infected by a trematode. According to that hypothesis, proto-digeneans possessing a typical turbellaria-like structure adopted commensalism before becoming tissue parasites in gastropods. In an extreme drought, activity of terrestrial gastropods undoubtedly is reduced and mortality increased. Despite the clear ecological importance of terrestrial gastropods, little is known about the ecology of most species. Thin-shelled bivalves, gastropods, crinoids and entomozoaceans dominate the fossil content. In coastal ecosystems the first intermediate hosts of digenetic trematodes are mostly littoral gastropod molluscs. One metre further above, the first marine gastropods appear within carbonaceous mudstones. Note that gastropods are preserved as glauconitic moulds. The last chapter is largely concerned with interactions with platyceratid gastropods and other parasites and the crinoids' response to them. In addition, the variety of responses observed for gastropods may in part reflect the influence of other disturbance types during the 15-y study. The young leaves on saplings may be a better food source for mangrove gastropods, or saplings may be their preferred habitat for other reasons. The gastropods are generally small (1-3 cm), but sometimes reach almost a decimetre. Unfortunately, little is known about the rate at which gastropods accumulate trematodes. The present knowledge of the genetics and host- parasite relationships of this gastropod group is far from adequate. Compromised survival of infected individuals is not restricted to gastropods. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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