They are among the simplest single-celled ...

Bacteria (one of them bacteria), very small. Almost all bacteria are so small that can only be seen through. Bacteria from each other, so they are kind. They are among the simplest single-celled organisms, and was one of the earliest forms of life. They include a number of >> << that live in extreme habitats. There are probably more individual bacteria than any other species of organisms on the planet. Most bacteria live on or in, but many who live within or on the skin of other organisms, including humans. There are approximately ten times more bacterial cells of human cells in each of our bodies. Some bacteria can cause, while others help us in everyday activities such as digestion of food (

). Some even work in our factories in manufacturing and

. Bacteria (creates more bacteria) by dividing in half and purchase strattera create two "daughter" cells. Each daughter are identical in form to the parents, but less. Bacteria do not have sex, but they collect and transmit

a few species. It allows them to resist >> << from one strain to another. Full >> << known for many bacterial strains. Bacteria differ in size and shape, but generally at least ten times larger than viruses. A typical bacterium is about 1 em (one

) in diameter, so that thousands of bacteria, lined up to one millimeter in length. There are about five nonillion (5 ‡ 10

) bacteria on Earth. Bacteria were identified and grouped by their shape. Bacillary bacteria, cocci and spherical spirilla spiral shape. Pathogenic bacteria are harmful kind of get into the body of air, water or food. Once inside, the bacteria attached to or invasion of specific cells in our respiratory system, gastrointestinal tract or open wound. There they begin to multiply and spread, using the human body as a source of its own >> << and energy. [[.