Which of the following characters is absent in all chordates? (a) Diaphragm (b) Coelom (c) Pharyngeal gill clefts (d) Dorsal nerve cord

Which of the following characters is absent in all
chordates?
(a) Diaphragm (b) Coelom
(c) Pharyngeal gill clefts (d) Dorsal nerve cord
by

1 Answer

Answer :

(a) Diaphragm
by

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