Here's why:
* Somatic cells are any cells in the body that are not involved in sexual reproduction (like skin cells, muscle cells, etc.).
* Diploid means having two sets of chromosomes. This is the typical state for somatic cells in most multicellular organisms.
* Haploid cells, like sperm and egg cells, have only one set of chromosomes.
Example: Humans have 23 pairs of chromosomes, meaning they have 46 chromosomes total. This means each human somatic cell is diploid.
