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.
Scots mile, Irish mile, and Arab miles are examples of the variations used around the world. The metric mile is an approximation for the international mile by rounding down the values to the closest 500. The metric mile is 1500 meters and is used in athletics. Nautical Miles. Nautical mile is a unit of length used primarily in navigation.