Question

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

Answer 1

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

Answer 2

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.