Microorganism

Microorganisms. The smallest living thing on planet earth.But the smallest microorganism is the virus.It can be found living in some bacteria,fungi,protozoa,animals,plants,and humans.The second microorganism is the fungi(fungus).Fungi can be found on mouldy bread,rotten food,trees and forest floors.Yeast is an example of microorganism.it is a fungi and used in making bread.The air spaces are caused by carbon dioxide gas given out when yeast acts on the dough.This shows that microorganisms Breath.The third is the protozoa.Protozoa is a singled celled microorganism that get their food from their surrounding envinroment,or as scientist would say that they are heterotrophs.They can be found in a variety of habitats such as fresh water(including ponds & rivers),marine(the sea)and even in the soil.the fourth is the bacteria.Bacterias exist in different shape,sizes and colours.the bacteria is also a small microorganism.imagine a small area at the tip of the human fingernail.Thousands of bacteria can be placed on the small area.