What term is used to describe non-reproductive body cells?

The term used to describe non-reproductive body cells is "somatic cells." Somatic cells make up the majority of an organism's body and are involved in forming the tissues and organs that carry out various functions necessary for the organism's survival. These cells undergo mitosis for growth, repair, and maintenance, producing two identical daughter cells.

In contrast, gametes are the reproductive cells (sperm and eggs), and they undergo meiosis to produce haploid cells for reproduction. Stem cells are unique in their ability to develop into different cell types but do not specifically refer to all non-reproductive cells. Reproductive cells specifically refer to those involved in sexual reproduction, again distinguishing them from somatic cells. Therefore, somatic cells are the correct term for non-reproductive body cells.