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Vertebrata Agnatha Pisces - Questions and Answers

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46. Agnatha or Cyclostomata are characterized by
A. Absence of jaws and presence of suctorial mouth
B. Presence of suctorial mouth, absence of jaws, presence of single nostril and unpaired fins
C. Absence of mouth, presence of single nostril
D. Round mouth with triradiate lips
Explanation:
47. One of the following is not a fish
A. Sucker fish
B. Flat fish
C. Flying fish
D. Cuttle fish
Explanation:
48. A fresh water fish is
A. Chanos
B. Hilsa
C. Clarius
D. Rostelliger
Explanation:
49. Given below are assertion and reason. Assertion. Lateral line system is found in fishes and aquatic larval amphibians. Reason. Lateral line system has receptors which are the clusters of sensory cells derived from ectoderm.
A. Both are true with reason being correct explanation
B. Both true but reason not correct explanation
C. Assertion true but reason wrong
D. Both wrong
Explanation:
50. Which one belongs to dipnoi?
A. Lung fish
B. Cat fish
C. Rat fish
D. Star fish
Explanation:
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