Final answer:
Somatic cells are the body cells of a multicellular organism that contain pairs of chromosomes not used for sexual reproduction.
Step-by-step explanation:
Somatic cells are the answer to your question. Somatic cells are the body cells of a multicellular organism, and they contain pairs of chromosomes that are not used for sexual reproduction. These cells have double the number of chromosomes compared to reproductive cells, and they make up the majority of cells in an organism's body. In humans, somatic cells have 23 pairs of homologous chromosomes.