Answer :
Microbiology is the study of microscopic organisms. Microorganisms are organisms that are too small to be seen , typically only visible through a microscope.
Microscopic organisms include bacteria, fungi, protozoa, and algae, as well as viruses, fungi, and prions. These organisms are ubiquitous, or found everywhere on Earth, from the deepest ocean to the highest mountaintop.
Microorganisms are classified according to their cellular structure, which is either prokaryotic or eukaryotic. Prokaryotic cells are simpler, consisting only of a cell wall, a cytoplasm, and genetic material, while eukaryotic cells are more complex, containing membrane-bound organelles such as the nucleus, mitochondria, and endoplasmic reticulum.
Pathogens are microorganisms that cause illness, disease, and infection. They can be bacteria, viruses, fungi, or even parasites, and come in contact with humans when they enter the body through inhalation, ingestion, or contact with a wound.
Spontaneous generation is a theory that was popular in the 17th century, which stated that living organisms could arise from non-living matter. This theory has since been disproven, and is no longer accepted in scientific circles.
Abiogenesis is the process by which living organisms can arise from non-living matter. This is thought to have occurred in the early history of Earth, when the first forms of life arose from the primordial soup.
Biogenesis is the opposite of abiogenesis, and states that living organisms can only come from other living organisms. This is the accepted theory today, and is supported by the scientific evidence.
Taxonomy is the branch of science that deals with the classification of living organisms. It is used to organize species into larger and more inclusive groups, such as family, genus, and species. Taxonomy is essential for the identification and cataloguing of organisms in order to understand their relationships and interactions with each other.
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