1 Understanding a Photosynthesis Diagram Photosynthesis is a process by which plants convert the radiant energy of sunlight into chemical energy that can be used by themselves to power their lives. 2  A diagram of photâ¦.
U-Boat Crew. The crew numbers aboard a U-boat varied greatly between different U-boat types and the mission it was undertaking. A Type II U-boat comprised of 25 officers and seamen, while a Type VII housed approximately 45. A Type IX had about 50 and Type XXI had a 57 man crew. Sometimes U-boats carried specialist crews on special missions, such as scientists, spies or commandos.
British submarines fought a deadly battle with their German counterparts during World War Two. The British submarines succeeded in sinking 12 German U-boats, for the loss of 4 of their own (P-615, Spearfish, Thristle and Doris) to U-boats. Doris was a French submarine on loan and under British command. The submarine Seal was captured in early 1940 and renamed UB by the Germans.