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.
Viruses as a group are the smallest microbes. Specific kinds of viruses range in size from a few dozen nanometers up to about 1,000 nanometers or 1 micrometer.Bacteria and archaea are generally the second smallest microbes as a group.But some types of bacteriaâ Chlamydia, for exampleâare about as small as the largest viruses.And there are a couple of monster bacteriaâ Thiomargarita namibiensis and Epulopiscium fishelsoni âthat are actually large enough to see without a microscope.ut some types of bacteriaâ Chlamydia, for exampleâare about as small as the largest viruses. And there are a couple of monster bacteriaâ Thiomargarita namibiensis and Epulopiscium fishelsoni âthat are actually large enough to see without a microscope.