The range of the radar horizon dependson the height of the antenna and on the amount of bending of the radar wave.The bending is caused by diffraction and refraction. Diffraction is a propertyof the electromagnetic wave itself. Refraction is due to the prevailingatmospheric conditions.
Anaerobic bacteria, or anaerobes, are bacteria that do not need oxygen to live. In humans, these bacteria generally live in the gastrointestinal tract, but they may also be found in other places outside the body, including in the soil and water, in foods, and in animals.
Bacteria Autotrophs. Next we have the tiny organisms called bacteria. Like plants and algae, bacteria can also be autotrophic. Let's examine three tiny bacteria autotrophs. Cyanobacteria. Probably one of the most important types of bacteria, cyanobacteria are known to be aquatic and live in large colonies.