What species that has been studied in great detail and is used to understand specific phenomena in biology?

Species that has been studied in great detail and is used to understand specific phenomena in biology are Model organism .

Explanation:

MODEL ORGANISM - A model organism (often abbreviated to model) is a non-human species that has been extensively studied in order to better understand specific biological processes, in the hope that observations made in the model organism can lead to new understanding of the workings of other organisms. When human experimentation is either impossible or immoral, model organisms are commonly used to study human disease. The shared descent of all living species, as well as the survival of metabolic and developmental processes and genetic material during evolution, make this strategy possible.

Although studying model organisms can be beneficial, caution should be exercised when extrapolating results from one organism to another.

Viruses, as well as model organisms from all three realms of life, are included. Escherichia coli (E. coli) is the most widely studied prokaryotic model organism, having been studied for more than 60 years.

It's a common gram-negative gut bacterium that can be easily and cheaply grown and cultured in a laboratory environment. It is the most commonly used organism in molecular genetics, as well as an important species in biotechnology and microbiology, where it has acted as the host organism for most recombinant DNA research.

Hence , the answer is model organism .

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