A(n) organ<>is<>a structure that is composed of one or more types of tissues$$$a structure<>is composed<>of one or more types of tissues
An organ is a structure that  consists of two or more types of tissues that work together to do the same job.
A(n) organ is a structure that is composed of one or more types of tissues.
What is a structure that is composed of one or more types of tissues?