... a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail for at least some period of their life cycles. ... 2 Definition; 3 Subdivisions.
All chordates have a
Psychoanalysis. of or relating to the second stage of psychosexual development, during which gratification is derived from the retention or expulsion of feces.
Animals in the phylum Chordata share four key features: a notochord, a dorsal
hollow nerve cord, pharyngeal slits, and a
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Lastly, all chordates have a
Oct 3, 2005