1 A unit-quantity of electricity used as a measure of the amount of electrical charge that may be obtained from a storage battery before it requires recharging. 2  Ampere-Hour Capacity -- The number of ampere-hours which can be delivered by a storage battery on a single discharge.
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.
Organisms obtain energy in different ways. But all energy traces down from the sun. Most plants get energy by absorbing sunlight in their chloroplasts by the means of photosynthesis, however there are some carnivorous plants, such as the Venus Flytrap. Herbivores eat the plants and get energy from them. Then carnivores eat the herbivores. This is the food chain. So, all organisms are in the food chain, and most get energy from eating food, either plant or animal.