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In a living organism, what is an organ? A. a structure composed of a number of tissues that work together to perform a specific task B. functional unit, or building block, of all organisms; smallest unit that can carry on the activities of life C. a structure that provides a specific service within a cell D. a group of similar cells that perform a common function

User Nelfeal
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Answer:

A—An organ is a structure composed of a number of tissues that work together to perform a specific task

Step-by-step explanation:

User Fernandezcuesta
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