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.
On the ocean, distances are calculated slightly different than on land, hence Nautical phrases are applied as opposed to land or Statute terminology. Nautical Mile (nm): A unit of distance used in navigation and based on the length of one minute of arc taken along a great circle. The value 1,852 meters (6,076.1 ft) has been adopted internationally. Statute mile: A unit of distance equal to 1,609 km (0.869 nm, 5,280 ft.). 1 nautical mile = 1.15 statute miles 1 statute mile = 1.6 kilometers. A knot is a unit of speed one nautical mile per hour, which is approximately 1.15 statute miles per hour.