HUMAN NUTRITION

Detailed explanation-1: -An organism that can be seen only through a microscope. Microorganisms include bacteria, protozoa, algae, and fungi. Although viruses are not considered living organisms, they are sometimes classified as microorganisms.

Detailed explanation-2: -Microbes are organisms that are so small that they cannot be viewed by our naked eye. These organisms are usually unicellular although some may be multicellular. However, they can all be viewed and studied only under a microscope. Hence their name-microbes.

Detailed explanation-3: -Bacteria are the single-celled microbes which are heterotrophic in nature. Bacteria are organisms which are not visible by naked eyes. Bacteria can only be visualized under electron microscope as it is able to magnify objects by 300 times.

Detailed explanation-4: -Among all the microbes, viruses are the smallest. Viruses are living only inside the host body and are non-living outside. Viruses are pathogens and cause diseases in living organisms. Viruses have the smallest size such as 0.02 microns.

Detailed explanation-5: -Technically a microorganism or microbe is an organism that is microscopic. The study of microorganisms is called microbiology. Microorganisms can be bacteria, fungi, archaea or protists. The term microorganisms does not include viruses and prions, which are generally classified as non-living.