What does putting plants and animals in orderly groups based on similar characteristics is called?

Putting plants and animals in orderly groups based on similar characteristics is called classification. This process allows scientists to organize biodiversity into categories, making it easier to study and understand relationships among different organisms. The system often involves hierarchical levels, such as kingdom, phylum, class, order, family, genus, and species. This systematic approach is essential for effective communication and research in Biology and ecology.