Which group is the largest group of animals?

Arthropoda:

1. It is an invertebrate animal exhibiting a segmented body, an exoskeleton, and paired jointed appendages.
2. Arthropods come under the phylum Arthropoda, which comprises arachnids, insects, crustaceans, and myriapods.
3. It is the largest group of animals or the largest phylum in the kingdom Animalia.
4. It comprises the organisms, which possess jointed appendages with bilateral symmetry, they are coelomate and triploblastic animals.
5. These organisms exhibit an organ-system level of organization.
6. Some examples of Arthropoda are mosquitoes, spiders, ants, scorpions, butterflies, honey bees, etc.