Bacteria
Bacteria is a domain made up of prokaryotes that differ from other prokaryotes in the makeup of their cell walls and in their genetics; this domain aligns with the traditional kingdom Eubacteria. There are three different types of bacteria Bacilli, Cocci, and Spirilla. Bacilli are rod shaped. They have a large surface area, which helps them take in nutrients. Cocci are spherical. They do not dry out as quickly as rod-shaped bacteria. Spirilla are long and spiral shaped. They use flagella at both ends to move like a corkscrew.
Bacteria are classified by the way they get food. Bacteria that break down leaves are consumers. They get there food by eating other organisms. Decomposers feed on dead organisms. Bacteria that make their own food are called producers. Bacteria are also very important to the health of Earth. Bacteria help with the Nitrogen Fixation process by taking in nitrogen from the air and change it into a form that plants can use. Bacteria help with recycling to. Decomposer bacteria break down dead plant and animal matter. They help with cleaning up too. They fight pollution. They are good for people too. They help make cheese, yogurt, sour cream, and buttermilk. They make antibiotics which are used to kill bacteria.