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.
In its conventional definition, a nautical mile is the length of one arc minute measured along any meridian. It is equal to the length of one arc minute along the equator. One nautical mile is equal to 1.15078 miles or 6,076.12 feet. In metric units, nautical mile is 1.85200 km or 1,852.00 meters. It is abbreviated to NM or nmi for convenience. Nautical miles are primarily used in navigation, in both naval and aerospace industries.