1. Some species of fish have physoclistous reproduction, while others have ovoviviparous or viviparous reproduction.
一些鱼类物种采用physoclistous的繁殖方式，而其他物种则采用卵胎生或胎生的方式。
2. Physoclistous reproduction has its advantages in certain environments, as it allows the fish to better control and protect their offspring.
在某些环境中，physoclistous的繁殖方式具有一定优势，因为它可以使鱼类更好地控制和保护他们的后代。
