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.
Italy had one of the largest submarine forces in the world. At the beginning of the war, Italy had 117 submarines, of which only seven could be considered out of date. Italian submarines were used throughout the war and patrolled the, Atlantic, the Mediterranean, Red, and Black seas, and even the Indian Ocean.