microscopic cross sectional view through woody stems to show vascular bundles, xylem, cambium, phloem - 木質部 個影片檔及 b 捲影像00:19
t/l of growing fern (kingdom: plantae, division: pteridophyta) plants and uprolling young frond. this clip includes a transparent background. clip isolated on black is also available - 木質部 個影片檔及 b 捲影像00:20
evolution of vascular plants: the ferns - part 22 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 - 木質部 個影片檔及 b 捲影像00:33
evolution of vascular plants: the ferns - part 20 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 - 木質部 個影片檔及 b 捲影像00:34
evolution of vascular plants: the ferns - part 9 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 - 木質部 個影片檔及 b 捲影像00:28
evolution of vascular plants: the ferns - part 7 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 - 木質部 個影片檔及 b 捲影像00:34
microscopic cross sectional view through woody stems to show vascular bundles, xylem, cambium, phloem - 木質部 個影片檔及 b 捲影像00:36
flower of capsella bursa-pastoris w.m.under light microscope zoom in different area - 木質部 個影片檔及 b 捲影像00:08
flower of capsella bursa-pastoris w.m.under light microscope zoom in different area - 木質部 個影片檔及 b 捲影像00:14