Question

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

Answer 1

Answer:

the answer is D) a structure composed of a number of tissues that work together to perform a specific task.

Explanation:

all organs work together to keep us healthy. that's why they're called "organ systems." a system works together!