Which of the following is not a characteristic feature of chordates?
a)four-chambered Heart
b)Notochord
c)Nerve Cord
d)Gills Slits
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Answer:
a)four-chambered Heart
Explanation:
Animals in the phylum Chordata share five key characteristics that appear at some stage during their development: a notochord, a dorsal hollow (tubular) nerve cord, pharyngeal gill arches, or slits, a post-anal tail, and an endostyle/thyroid gland.
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