Question

multiple choice question
what is an anatomical structure that is composed of at least two different tissue types, has recognizable structural boundaries, and has a discrete function different from the structures around it called?
tissue
organism
cell
organ

Explanation:

An organ is defined as an anatomical structure made up of at least two different tissue - types, having distinct structural boundaries and a unique function compared to surrounding structures. A tissue is a group of similar cells, a cell is the basic unit of life, and an organism is a living being made up of organs.

Answer:

Organ