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.
The German U-boat designers had to secretly store special parts when they worked on improving their U-boats. The Type VIIC U-boat was the main type of U-boat used in the German's U-boat campaign. The VIIC held a crew of up to 56 and 14 torpedoes. The first U-boat military campaign involved 20 U-boats. When the United Kingdom (UK) declared war on the German Empire on 4 August 1914, the Germans sent out 10 U-boats on 6 August 1914 and the remaining 10 later that month. None of the U-boats sunk any British ships, but suffered heavy German casualties.