Definition of courier: An individual responsible for the exchange of items between two or more parties. Couriers are usually employed by a company that charges a flat rate to the party using the courier service. Federal Express, UPS, DHL, and the United States Post Office all employ couriers to deliver mail and packages.
At least 3 bacterial morphotypes, as well as fungal mycelia, thelastomatid nematodes, and ingested material are found in the hindgut. At annual molt, the lumen bacteria virtually disappear; presumably they are replaced from anterior gut regions, ingested exuvium, and ingested soil.
For example, bacillus-shaped bacteria that have an inactivated MreB gene become coccoid shaped, and coccus-shaped bacteria naturally lack the MreB gene. Most bacteria come in one of three basic shapes: coccus, rod or bacillus, and spiral.a. Division in one plane produces either a diplococcus or streptococcus arrangement. diplococcus: cocci arranged in pairs (see Fig.ost bacteria come in one of three basic shapes: coccus, rod or bacillus, and spiral. a. Division in one plane produces either a diplococcus or streptococcus arrangement. diplococcus: cocci arranged in pairs (see Fig.