the dried excrement of fish-eating sea birds, deposited in rocky coastal regions of South America: contains the urates, oxalates, and phosphates of ammonium and calcium; used as a fertilizer.
In prokaryotes there is only one rather simple type of cell division, which produces two identical daughter cells from one progenitor cell. This is asexual cell division, since it involves no sexual union of different individuals.
Diploid cells reproduce using mitosis, which creates a completely identical copy of the cell. In humans, the somatic cells (or non-sex cells) are all diploid cells. These include the cells that make up the organs, muscles, bones, skin, hair, and any other part of the body other than the eggs or sperm cells.