FREEDIVING ACCIDENT STATISTICS. Breath-hold diving â commonly known as freediving- an in-water activity with a mask but without the use of scuba or surface-supply breathing gas, has grown in popularity as an underwater activity with numerous sub-disciplines. While generally safe, the aquatic realm is unforgiving and serious injury or death can occur. Learning from freediving accidents is important to increase diver awareness and promote safety. Methods
Bacteria are not multicellular organisms. They are large group of unicellular microorganisms. One bacterium (the singular form of bacteria) is one small organism, and it is called a prokaryotic cell, or a prokaryote.
By contrast, a multicellular organism is made up of many cells that are dependent on each other to perform these essential functions as a group. The cells have divided up the labor and each cell has become specialized to perform a specific task.This specialization is a key characteristic of multicellular organisms.y contrast, a multicellular organism is made up of many cells that are dependent on each other to perform these essential functions as a group. The cells have divided up the labor and each cell has become specialized to perform a specific task.