Which one of the following is not a Chordata character?

Dorsal heart

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Dorsal and hollow nerve cord

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Pharyngeal gill slits

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Post anal tail

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Solution

The correct option is A Dorsal heart
Chordates are the group of animals which possess a notochord. They have a tubular hollow and dorsal nerve cord. The notochord is the rod like structure. It is made up of cartilage and extends along the length of the body. In certain groups, the notochord forms the tail like structure which helps in swimming in case of fishes. They have a ventral heart. There are presence of pharyngeal slits. There is an endostyle and a post anal tail for at least some period of their life.
Thus, the correct answer is option A.

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Similar questions

Q. Phylum Chordata is characterised by the presence of
A. notochord
B. dorsal hollow nerve cord
C. paired pharyngeal gill slits

Q. Which of the following statements are true for the phylum Chordata?

(a) In cephalochordates, notochord extends from head to tail
(b) Urochordates are exclusively marine
(c) Notochord is dorsal to nerve cord
(d) All vertebrates are jawed

Name the phylum in which dorsal nerve tube, notochord and pharyngeal gill clefts are present.

Animals with a double ventral notochord, dorsal nerve cord, pharyngeal gill slits and a post anal tail are placed in the highly evolved phylum called_____.

Q. Which of the following statements are true for the phylum - chordata?
(a) In urochordata notochord extends from head to tail and it is present throughtout their life.
(b) In Vertebrata notochord is present during the embryonic period only.
(c) Central nervous system is dorsal and hollow.
(d) Chordata is divided into 3 subphyla: Hemichordata, Tunicata and Cephalochordata.

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