4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.
涡虫是雌雄同
，生殖系统适
受
。单
吸虫（单殖纲）大多是鱼外寄生虫。
；单性生殖，单(亲生)殖②单成4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.
涡虫是雌雄同，生殖系统适受。单吸虫（单殖纲）大多是鱼外寄生虫。
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自动生成，部分未经过人工审核，其表达
容亦不代表本软件观点；若发现问题，欢迎向我们指正。
