The largest and most diverse group of fish are the ray-finned fishes. These include many, but to name a few; seahorses, pipefish, puffer-fish and flatfish...etc.
It is as primitive as a cave man.
fish is a type of animal. Same with birds.
A bony fish is a type of fish belonging to the class Osteichthyes, which is characterized by having a skeleton composed primarily of bone tissue. They are the most diverse and abundant group of fish, encompassing familiar species such as salmon, trout, and cod.
Anthropods is the largest and most diverse of all animals. These animals have segmented bodies that are supported by an exoskeleton. This group includes spiders, crustaceans, millipedes, and centipedes.
Of or belonging to the Teleostei or Teleostomi, a large group of fishes with bony skeletons, including most common fishes. The teleosts are distinct from the cartilaginous fishes such as sharks, rays, and skates
Former Answer by some dummy: "The most diverse group is insects, which belong to the group ARTHROPODA*.*Arthropoda-Largest and most diverse animal phylum, mostly insects."This answer is completely wrong based on the question.Arthropods are invertebrates! They are the most numerous INvertebrates.The most diverse vertebrates are BONY FISH.
Cnidarians are the most diverse group.
The Arthropods are the largest and most diverse.
The catfish belongs to a diverse group of ray-finned fish, order Siluriformes.
The answer would be fish as they are the simplest organisms listed and have been around the longest leading to many different species, much more than the others.
Acanthopterygii is the superorder of fish that contains the most species, with over 13,000 species. It is a diverse group that includes many familiar fish such as perch, snappers, and groupers.
The most diverse group of gymnosperms are the conifers.
Bony Fishes
Angiosperms
penis
Angiosperms
Angiosperms