evolution of vascular plants: the ferns - part 11 of 28. describes the evolution of vascular systems in land plants. the highly specialized structures that occur in vascular plants are shown through investigation of the fern. explains the adaptive advanta - 古生代 個影片檔及 b 捲影像00:35
evolution of vascular plants: the ferns - part 2 of 28. describes the evolution of vascular systems in land plants. the highly specialized structures that occur in vascular plants are shown through investigation of the fern. explains the adaptive advantag - 古生代 個影片檔及 b 捲影像00:36