Answer:All living organisms are composed of cells, from just one to many trillions, whose details usually are visible only through a microscope.
Explanation:
The entire population of microorganisms inhabiting an area, such as soil, humans, the large intestine, feces, or any part of the human body is known as a <u>microbiome.</u>
Microorganisms are those organisms that can be seen only through a microscope.
These are very small microscopic creatures that are hard to see with the bare eye and exist in colonial forms or as a single cell.
All bacteria, fungi, protozoa, and algae are microorganisms.
Some microorganisms are beneficial for humans while others have harmful and damaging impacts and also cause infections.
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A vaccine is a preparation of one or more microbial antigens to induce protective immunity in potential hosts.
Vaccines are the anti-microbial agents administered to provide immunity against specific diseases. There can be a wide variety of vaccines, like: live attenuated vaccine, vaccine with killed or inactivated microbes, vaccine containing the sub-parts of the microbes, etc.
Immunity is the body's ability fight against a disease. The immunity is build when a body gets attacked by pathogen. Various immune cells like neutrophils, MHCs, dendritic cells, B and T cells, etc. are involved in building and strengthening the immunity of any person.
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Only plants have chloroplast and a cell wall