Both organs and variety of organisms have bone , body parts like legs , arms and many more.
A full understanding of the physical processes which lead to different types of auroras is still incomplete, but the basic cause involves the interaction of the solar wind with the Earth’s magnetosphere. The varying intensity of the solar wind produces effects of different magnitudes, but includes one or more of the following physical scenarios. so the answer is A
Usually form superficial skin infections only A. Bacteria
