Question 9
Which one is the most striking or (common) character of the vertebrates?

(a) Presence of a notochord
(b) Presence of triploblastic condition
(c) Presence of gill pouches
(d) Presence of coelom

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Solution

Ans) (a) Presence of a notochord

The common feature of all vertebrates is the presence of notochord.

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Q. Question 9
Which one is the most striking or (common) character of the vertebrates?

(a) Presence of notochord
(b) Presence of triploblastic condition
(c) Presence of gill pouches
(d) Presence of coelom

Q. Vertebrates are characterized by

(i) Presence of true coelom

(ii) Presence of notochord

(iii) A ventrally placed heart

(iv) The pharyngeal gill slits at some stage in life cycle

(v) RBC

Question 18
Which one of the following feature is not a characteristic of protochordata?

(a) Presence of notochord
(b) Bilateral symmetry and coelom
(c) Jointed legs
(d) Presence of circulatory system

Question 18
Which one of the following feature is not a characteristic of protochordata?

(a) Presence of notochord
(b) Bilateral symmetry and coelom
(c) Jointed legs
(d) Presence of circulatory system

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

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Basis of Classification

Standard IX Biology

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Question 9 Which one is the most striking or (common) character of the vertebrates? (a) Presence of a notochord (b) Presence of triploblastic condition (c) Presence of gill pouches (d) Presence of coelom

Ans) (a) Presence of a notochord The common feature of all vertebrates is the presence of notochord.

Question 9
Which one is the most striking or (common) character of the vertebrates?

(a) Presence of a notochord
(b) Presence of triploblastic condition
(c) Presence of gill pouches
(d) Presence of coelom

Ans) (a) Presence of a notochord

The common feature of all vertebrates is the presence of notochord.