They provided a greater range of motion, which improved survival by allowing fishes to catch more prey and avoid predators. They enabled animals to increase the accuracy and speed of their movements.
They're important to evolutionary biologists because members of their group are thought to have given rise to the first four-legged land vertebrates.
jawless fishes
vertebrates
Correct
so they can eat.
Fishes are vertabrates because they have bones remember, this causes fossils.
Lancelets share key characteristics with vertebrates such as a notochord, dorsal nerve cord, and post-anal tail during their larval stage, leading to their classification in the same phylum, Chordata, as vertebrates. This evolutionary relationship suggests a common ancestry between lancelets and vertebrates.
The vertebrate jaw first appeared in early jawless fishes, such as the now-extinct Placodermi, around 450 million years ago during the Ordovician period. This evolutionary development allowed for more efficient feeding and contributed to the success of jawed vertebrates.
tagamin taki ka
all fishes
Bony Fishes
Whale sharks are vertebrates, but they have cartilage instead of bone. it depends and yes they are because they are a type of fish and fishes are vertebrates