In the wild, the only tiger subspecies in the wild that have been observed to carry the white color is the Bengal tiger. Even all the white tigers that have been held captive are partly Bengal in subspecies. It is believed that the rare recessive gene that carries the white color comes from Bengal tigers only.
It is difficult to classify viruses as living organisms because they are not made of cells. They only become alive when they find a host i.e. a living cell to live in.ome algae are difficult to classify because they sometimes do not properly fit in one of the kingdoms since they may have characteristics from a few of the kingdoms.
Actually there is two main reasons why biologists or scientists general classify things, and they are 1. It enables the organisation of organisms into the 8 kingdoms (kingdom, phylum, class, order, family, Genus and species), which lets the scientists or biologists, see the information about the organisms and the relationships between them. 2.