Comparison and explanation

Of protists, bacteria, and viruses


a member of a large group of unicellular microorganisms that have cell walls but lack organelles and an organized nucleus, including some that can cause disease.

Classification of Bacteria

bacilli: rod-shaped

cocci: spherical

spirilla: curved walls


These organisms are eukaryotes. The protists are a diverse group of eukaryotes that cannot be classified as animals, plants, or fungi


an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host


Combination and connection of explanation

Viruses contact or infest a human or living organisms bodies, through air, water, touch, etc. causing the white blood cells and others to fight for the body, though some viruses are like ninjas to the organims body, in some cases temparaly disableimg the organisms fighting functions or becoming resistant to vaccines. Protists live in water, moist terrestrial habitats, like parasites and other symbionts in the bodies of multicellular eukaroytes. Bacteria in needed in your body for you to live and though parasites and virus that make you sick can happen they are always within you protecting and helping you.

Works cited

Biology textbook

Saladin, K. .. (n.d.). Biology Reference. Protista. Retrieved March 6, 2014, from

Protists -. (n.d.). Protists -. Retrieved March 6, 2014, from