A: Bacteria obtain energy by either ingesting other organisms and organic compounds or by producing their own food. The bacteria that produce their own food are called autotrophs. Bacteria that must consume other organic molecules for energy are called heterotrophs.
Nautical Mile vs. Mile. While mile is a unit of distance on land, a nautical mile is used to measure distances at sea. 1 nautical mile = 1.151 mi. Kilometer vs Mile.
There are 360 * 60 = 21600 nautical miles and equals to (21600 * 1.852 = ) roughly 40,000 kilometers which is the length of the circumference of the earth. The abbreviations for nautical mile are nm,NM or nmi. Kilometer is a metric length unit and equals to 1000 meters, 10 hectometers or 100 dekameters. The abbreviation is km.