| 1. | Examples include male and female plants in dioecious species , aerial and submerged leaves , alternation of gametophyte and sporophyte stages of a life cycle , and mesophyll and bundle - sheath chloroplasts 例如在雌雄异株物种中的雌性植物和雄性植物,气生的和被水浸没的叶片,生活史中的配子体与孢子体的交替,叶肉和维管束鞘叶绿体等。 |