A few members of the phylum Chordata are not vertebrates. The small filter-feeding lancelet and tunicate are two common examples.
A few members of the phylum Chordata are not vertebrates. The small filter-feeding lancelet and tunicate are two common examples.
Lancelets retain all four chordate features throughout their lifetime, but tunicates only exhibit all of them in their larval stage.
Lancelets retain all four chordate features throughout their lifetime, but tunicates only exhibit all of them in their larval stage.
Tunicates become sessile as adults and use their pharyngeal slits to filter food from the water.