What are the differences scientists use to
classify animals?

Thanks for the question,

To classify organisms, scientists use similarities and variations among species. typically these variations area unit simple to ascertain, like whether or not associate animal has fur, feathers, or scales. There area unit seven main assortment ranks: kingdom, phylum or division, class, order, family, genus, species.

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?