The androgyne is the united male and female principles together.

雌雄同（阴阳人）是男性与女性法则联合。

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，殖系统适于内受精。单源吸虫（单殖纲）大多是寄虫。

The androgyne is the united male and female principles together.

雌雄同体（阴阳人）是男性与女性法则的联合。

4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.

涡虫是雌雄同体的，生系体内受精。单源的吸虫（单）多是鱼的外寄生虫。

The androgyne is the united male and female principles together.

雌雄同体（阴）男性与女性法则的合。

4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.

涡虫雌雄同体的，生殖系统适于体内受精。单源的吸虫（单殖纲）大多鱼的外寄生虫。

The androgyne is the united male and female principles together.

雌雄同体（阴阳人）是男性与女性法则的联合。

4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.

涡虫是雌雄同体的，生殖系统适于体内受精。单源的吸虫（单殖纲）大多是鱼的外寄生虫。

The androgyne is the united male and female principles together.

雌雄同体（阴阳人）是男与法则的联合。

4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.

涡虫是雌雄同体的，生殖系统适于体内受精。单源的吸虫（单殖纲）大多是鱼的外寄生虫。

The androgyne is the united male and female principles together.

雌雄同体（阴）男性与女性法则的合。

4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.

涡虫雌雄同体的，生殖系统适于体内受精。单源的吸虫（单殖纲）大多鱼的外寄生虫。

The androgyne is the united male and female principles together.

雌雄同体（）是男性与女性法则的联合。

4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.

涡虫是雌雄同体的，生殖系统适于体内受精。单的吸虫（单殖纲）大多是鱼的外寄生虫。

The androgyne is the united male and female principles together.

雌雄同体（阴阳人）男性与女性法则的联合。

4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.

涡虫雌雄同体的，生适于体内受精。单源的吸虫（单纲）鱼的外寄生虫。

The androgyne is the united male and female principles together.

雌雄同体（阴阳）性与女性法则的合。

4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.

涡虫雌雄同体的，生殖系统适于体内受精。单源的吸虫（单殖纲）大多鱼的外寄生虫。