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.
Taxonomy, the classification of living things, is really complicated. For example, anyone who's worked in a record store and had to fit every band into one neat little category or other has an idea as to why: Many organisms defy traditional or obvious categories in the absence of genetic studies. Referring to a species by the proper name of its family/order/etc. instead of the anglicized form. 2  A human is not a Hominidae. 3  A human is a hominid, a member of the family Hominidae. 4  Doing this wrong is like referring to an animal as an Animalia or a plant as a Plantae.