Ecologists have so far known, found and certified a large number of species in the plant and animal kingdom. In terms of members, the largest found and identified so far are from among the

1. Ecologists study the diversity of life, which includes identifying and classifying different species. 2. The question asks which group has the largest number of known and identified species. 3. While fungi, plants, and bacteria represent vast numbers of organisms and species, the phylum Arthropoda, particularly the class Insecta (insects), boasts the highest number of described species in the animal kingdom and overall. 4. Estimates suggest there are over a million described insect species, far exceeding the known number of species in the other groups listed.