microscopic footage of the stomata of a plant leaf opening and closing sped up 140 times - 植物氣孔 個影片檔及 b 捲影像00:23綠色
photosynthesis (3rd edition) - part 5 of 35. a fascinating look at a process that is one of the key energy producers for all life - and the current research being done to expand its potential use. the film examines chemical changes and structures involved - 植物氣孔 個影片檔及 b 捲影像00:34
photosynthesis (3rd edition) - part 6 of 35. a fascinating look at a process that is one of the key energy producers for all life - and the current research being done to expand its potential use. the film examines chemical changes and structures involved - 植物氣孔 個影片檔及 b 捲影像00:29
flowering plants and their parts - part 18 of 26. reviews the typical structure of the "higher" green plants and illustrates, through demonstrations, the functions and interdependence of their parts - 植物氣孔 個影片檔及 b 捲影像00:33
flowering plants and their parts - part 19 of 26. reviews the typical structure of the "higher" green plants and illustrates, through demonstrations, the functions and interdependence of their parts - 植物氣孔 個影片檔及 b 捲影像00:30
