A virus or a prion.
A prion.
Its iron bloop bloop
a virus
A virus
Pathogen.
A virus is a small infectious microorganism that exists as a particle rather than a complete cell that is not capable of reproducing outside of a host cell. A virus only reproduces inside of other living cells in other organisms.
Prion
The homophone for "small particle" is "molecule".
BECAUSE MOST INFECTIOUS BACTERIA ARE OF THIS SIZE BECAUSE MOST INFECTIOUS BACTERIA ARE OF THIS SIZE
=Scientist use classifacation to but living or nonliving organisms in small or big groups...==Scientist use classifacation to but living or nonliving organisms in small or big groups...==Scientist use classifacation to but living or nonliving organisms in small or big groups...=
When a cell engulfs a particle, it is called phagocytosis. Certain white blood cells phagocytize and digest infectious particles like bacteria to kill them.
A prion is a small infectious particle that contains a misfolded protein. These contain no DNA or RNA. These cause Creutzfeldt-Jakob disease, Scrapie in sheep and Kuru. These are deadly and progressive nerve wasting diseases.A plant pathologist discovered an infectious RNA particle smaller than a virus that causes diseases in plants. He called it a viroid. Millions each year are lost by these viroids. These contain only RNA.These two are the smallest infectious particles. They are not called microorganisms because they are not alive any more than viruses are.