Define kinds of plants and animal on earth - Taxonomy?

Taxonomic studies have major objective-the learning of the kinds of plants and animal on earth, their names, their distinctions, their affinities, their distribution and habit. In the beginning, the science of taxonomy was the study of small fragments of plants which were collected, labelled and put on record. The information, accumulated from these studies is fundamental to the scientific knowledge of the inventory of the earth's plant resources.