英语翻译each flower contains one or three stamens and one carpel and some have a bract(small modified leaf) under them.they have no petals or sepals.Hermaphrodite species are pollinated by unspecialized insects ,unisexual species by the wind .Sev
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/28 00:34:46
英语翻译each flower contains one or three stamens and one carpel and some have a bract(small modified leaf) under them.they have no petals or sepals.Hermaphrodite species are pollinated by unspecialized insects ,unisexual species by the wind .Sev
英语翻译
each flower contains one or three stamens and one carpel and some have a bract(small modified leaf) under them.they have no petals or sepals.Hermaphrodite species are pollinated by unspecialized insects ,unisexual species by the wind .Severl other living plant families are represented as fossils inslightly younger rocks,with a wide range of flower structure from large-flowered magnolias tocatkin- bearing trees such as the planes .In some of these the flower structure is not rigidly set ,and they have variable numbers of stamens and carpels surrounded by a perianth,i.e.modified leaves or bracts not clearlly sepals or petals
英语翻译each flower contains one or three stamens and one carpel and some have a bract(small modified leaf) under them.they have no petals or sepals.Hermaphrodite species are pollinated by unspecialized insects ,unisexual species by the wind .Sev
每一朵花包含一个或3雌雄蕊一个心皮和一些有苞(小修改叶)在他们没有花瓣或萼片雌雄同体的物种无特定功能授粉的昆虫,单性,雌雄同株物种风.Severl生活被描绘成化石植物都inslightly年轻的岩石,与各种各样的花,从结构large-flowered木兰tocatkin -轴承的果树如飞机.这些花结构不太严格,他们有变量雄蕊和心皮的数量perianth包围着,即苞片树叶或修改clearlly萼片或不花瓣
每一朵花包含一个或3雌雄蕊一个心皮和一些有苞(小修改叶)在他们没有花瓣或萼片雌雄同体的物种无特定功能授粉的昆虫,单性,雌雄同株物种风.Severl生活被描绘成化石植物都inslightly年轻的岩石,与各种各样的花,从结构large-flowered木兰tocatkin -轴承的果树如飞机。这些花结构不太严格,他们有变量雄蕊和心皮的数量perianth包围着,即苞片树叶或修改clearlly萼片或...
全部展开
每一朵花包含一个或3雌雄蕊一个心皮和一些有苞(小修改叶)在他们没有花瓣或萼片雌雄同体的物种无特定功能授粉的昆虫,单性,雌雄同株物种风.Severl生活被描绘成化石植物都inslightly年轻的岩石,与各种各样的花,从结构large-flowered木兰tocatkin -轴承的果树如飞机。这些花结构不太严格,他们有变量雄蕊和心皮的数量perianth包围着,即苞片树叶或修改clearlly萼片或不花瓣
收起