STD 11 - 17. Locomotion and movement — BIOLOGY STD 11 Science — Question

$(i)$ Each step or rank in hierarchy is called taxonomic category.

$(ii)$ Species is a group of individual organisms with fundamental similarities capable of breeding among themselves.

$(iii)$ Taxonomic studies of all unknown organisms have led to the development of common categories like kingdom, phylum or division, class, order, family, genus and species.

$(iv)$ Lower the category, greater is the difficulty of determining the relationship to other taxa at the same level.