Answer; Molluscs
Is that what your asking?
If you're referring to one mammal in particular, then it should be the mitosis of body cells. Body cells do not perform meiosis as that is only for gamete production, therefore, it only happens in sex cells. In contrast, body cells will create identical copies of themselves so the organism can grow through mitosis. I hope that helps!
well it is not exactly essentioal but salmon need it
