no.
No, pharyngeal slits do not disappear before birth in all chordates. In some chordates, such as fish, these slits persist throughout their life and play a role in respiration and feeding. In other chordates, such as mammals, the pharyngeal slits do not persist through adulthood but are present during embryonic development.
All chordates embryos have pharngeal slits.
all chordates
Chordates all possess a notochord (dorsal supporting rod), gill slits, and a dorsal nerve cord some time in their life cycles.
At some point in all chordates' lives, they have a notochord, a nerve chord, gill slits and a tail. Some chordates are more complex though.
Gills I think, like pharyngeal gill slits ... maybe ....
all chordates have notochord, gill slits, postanal tail, and nerve chord.
Organisms that have pharyngeal gill slits and a dorsal hollow nerve cord at some point in their development include chordates, such as fish, amphibians, reptiles, birds, and mammals. These features are key characteristics of chordates during their embryonic stages.
Notochord, Postanal Tail, Pharyngeal Slits, Dorsal hollow nerve cord
Chordate is the common name for a very large group of animals (kingdom Animalia) that, at some stage in their life cycle, have something resembling a spinal chord or column, and gill slits. The phylum is called Chordata, and includes humans (we have gill slits in our fetal stage.
Lancelets are considered true chordates because they possess a notochord, dorsal nerve cord, pharyngeal slits, and a post-anal tail at some stage in their life cycle, which are characteristic features of chordates. They are believed to represent an early evolutionary stage of the chordates.
The movement for chordates is characterized by the presence of a notochord, dorsal nerve cord, pharyngeal slits, and a post-anal tail at some stage of their development. These characteristics are unique to chordates and help differentiate them from other animal groups.