Chordata
Classification: Deuterostome
Diversity
Craniata, tunicate, cephalochordate
Mammals, fish, amphibians, reptiles, birds, salps, sea squirts, lancelets
Life History
A notochord is present in all embryos, and may be present or absent/ reduced in adults. A dorsal, hollow, ectodermnal nerve cord typically forms by an infolding of the ectoderm tissue, which then “pinches off” and becomes surrounded by medoderm. The pharrangeal slits originally functioned in filer feeding: water taking into the mouth and let out via phrangeal slits. A postanal tail is present and extends behind the anus in many taxa; the anus isn’t at posterior tip of body.
Ecological Roles
Vertebrates function as both predator and prey in marine, terrestrial and freshwater environments. Most invertebrates chordates are sessile marine filter feeders or sessile marine predators in adulthood.
Human Impacts
Well, since we are chordates (vertebrates), humans wouldn't even exist if they didn't.
Classification: Deuterostome
Diversity
Craniata, tunicate, cephalochordate
Mammals, fish, amphibians, reptiles, birds, salps, sea squirts, lancelets
Life History
A notochord is present in all embryos, and may be present or absent/ reduced in adults. A dorsal, hollow, ectodermnal nerve cord typically forms by an infolding of the ectoderm tissue, which then “pinches off” and becomes surrounded by medoderm. The pharrangeal slits originally functioned in filer feeding: water taking into the mouth and let out via phrangeal slits. A postanal tail is present and extends behind the anus in many taxa; the anus isn’t at posterior tip of body.
Ecological Roles
Vertebrates function as both predator and prey in marine, terrestrial and freshwater environments. Most invertebrates chordates are sessile marine filter feeders or sessile marine predators in adulthood.
Human Impacts
Well, since we are chordates (vertebrates), humans wouldn't even exist if they didn't.