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a slender threadlike structure, especially a microscopic whiplike appendage that enables many protozoa, bacteria, spermatozoa, etc., to swim.
<span>Flagellum ......................</span>
The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. ... Humans play a major role in the carbon cycle through activities such as the burning of fossil fuels or land development.
