翻訳と辞書 Words near each other ・ Trematocara kufferathi ・ Trematocara macrostoma ・ Trematocara marginatum ・ Trematocara nigrifrons ・ Trematocara stigmaticum ・ Trematocara unimaculatum ・ Trematocara variabile ・ Trematocara zebra ・ Trematoceras ・ Trematochampsa ・ Trematochampsidae ・ Trematocranus ・ Trematocranus labifer ・ Trematocranus microstoma ・ Trematocranus placodon ・ Trematoda ・ Trematode life cycle stages ・ Trematolestes ・ Trematolobelia singularis ・ Trematomus ・ Trematon ・ Trematon Castle ・ Trematopidae ・ Trematosauria ・ Trematosauridae ・ Trematosaurinae ・ Trematosauroidea ・ Trematosaurus ・ Trematosphaeria ・ Trematosphaeriopsis Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Trematoda ： ウィキペディア英語版 Trematoda Trematoda is a class within the phylum Platyhelminthes. It includes two groups of parasitic flatworms, known as flukes. They are internal parasites of molluscs and vertebrates. Most trematodes have a complex life cycle with at least two hosts. The primary host, where the flukes sexually reproduce, is a vertebrate. The intermediate host, in which asexual reproduction occurs, is usually a snail. == Taxonomy and biodiversity == The trematodes or flukes include 18,000 to 24,000 species, divided into two subclasses. Nearly all trematodes are parasites of mollusks and vertebrates. The smaller Aspidogastrea, comprising about 100 species, are obligate parasites of mollusks and may also infect turtles and fish, including cartilaginous fish. The Digenea, the majority of trematodes, are obligate parasites of both mollusks and vertebrates, but rarely occur in cartilaginous fish. Formerly the Monogenea were included in Trematoda on the basis that they are also vermiform parasites, but modern phylogenetic studies have raised this group to the status of a sister class in the Platyhelminthes, with the Cestoda. . 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Trematoda」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.