An organ, in any multicellular organism, would BEST be described as

Question

A. several types of cells working together for a common purpose.
B. a group of the same kind of cells with a common structure and function.
C. a structure containing a single cell that is part of a large system.
D. a structure made of two or more tissues functioning together for a common purpose.

Answer 1

D. a structure made of two or more tissues functioning together for a common purpose.