What are organs made up of?

I think you know about what is cell. If you don't know then telling 'cells are the structural and functional unit of every living organism. Cells by interacting with other cells form tissue. Tissues are specialized group of cells having common structure and function. Tissues by interacting with other type of tissue form an organ. read more

No, the cells that make up tissues are organisms. Tissues make up organs, though. read more

I think you know about what is cell. If you don't know then telling 'cells are the structural and functional unit of every living organism. Cells by interacting with other cells form tissue. read more

Organ- a part of the body that has a particular function, organs are made out of tissues. read more