Comma. The comma is the punctuation symbol that has the most uses.
It serves a variety of purposes, but its two primary ones are (a) to interrupt the flow of thought with unnecessary expressions and (b) to separate elements to make the relationships between them more clear.
The comma is the most understated punctuation mark. It doesn't make a big deal out of itself or the material it separates or sets off. Examples of comma usage would only elicit a chorus of "duhs," as it is so widely used.
It suffices to say that a comma is typically the safe option to set off information and separate elements, provided that it doesn't interfere with any functions that are specifically reserved for the colon, semicolon, or parentheses.
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Answer:
the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
Explanation:
Biology is the natural science that studies life and living organisms, including their physical structure, chemical processes, molecular interactions, physiological mechanisms, development and evolution. Despite the complexity of the science, there are certain unifying concepts that consolidate it into a single, coherent field. Biology recognizes the cell as the basic unit of life, genes as the basic unit of heredity, and evolution as the engine that propels the creation and extinction of species. Living organisms are open systems that survive by transforming energy and decreasing their local entropy to maintain a stable and vital condition defined as homeostasis
