What term describes groups of similar cells that come together to form a larger functional unit?

• A. Groups of similar cells combine to form tissues.
• B. A group of tissues that perform a single function.
• C. A group of organs working together with a specific function.
• D. The discipline dealing with that which is good and bad and that which is moral duty and obligation.

Answer: (A)

The idea being tested is how cells organize into levels of structure. Groups of similar cells come together to form a tissue, which is a larger functional unit made from those cells. That’s why tissues is the best description here. Tissues, in turn, combine to form organs, and organs work together in organ systems. The other descriptions point to higher levels of organization (groups of tissues forming an organ, or groups of organs forming an organ system) or are unrelated concepts entirely. So the correct term is tissues.