What are a group of cells that perform the same function called?

A group of cells that performs a similar function is known as a tissue. Multicellular organisms such as animals all contain differentiated cells that have adapted to perform specific functions. These differentiated cells group together to form tissues.

A group of cells grouped together to perform a similar function is a tissue. For example, all of your mucels perform a similar function. The muscles are actually tissues consisting of a group of similar cells

An advantage of an mri over ct scan is d. it produces better images of hard tissues. hope this : )

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