B.Sc Hons Zoology Sem-3 CC-5-Calcutta University Question Paper

1. Answer any fifteen questions : 2×15
   (a) What is tunicin? Where is it found?
   (b) What is hemotoxic venom?
   (c) State two characteristics of Subclass Theria.
   (d) What is aspect ratio of wing?
   (e) What is ‘Zugenruhe’?
   (f) Define hemibranch and holobranch.
   (g) What is echolocation?
   (h) Write distinctive features of Anapsid skull.
   (i) Write scientific names of two poisonous snakes from West Bengal.
   (j) What is ‘Foramen of Paniza’?
   (k) State two functions of swim bladder.
   (l) Define ‘neoteny’. Give example.
   (m) Define ‘migration’ in birds.
   (n) State two characteristic features of Rhyncocephalia.
   (o) Distinguish between Anura and Urodela.
   (p) What is Wheel organ? State its function.
   (q) What is ciliary feeding?
   (r) State two differences between Chondrichthyes and Osteichthyes.
   (s) State difference between claw and nail.
   (t) What is Solenoglyphous fang?
   (u) Define parental care.
   (v) State the chordate features of Branchiostoma.
   (w) Name two migratory birds found in India.
   (x) State two differences of microchiroptera and megachiroptera.
   (y) Define anadromous migration. Give one example.
2. Answer any four questions : 5×4
   (a) Distinguish between FM and CF calls of bat.
   (b) State the advantages of migration in birds.
   (c) Describe briefly the steps in biting mechanism of poisonous snake.
   (d) Describe with diagram the ARO of Anabas sp.
   (e) Compare and contrast the process of progressive and retrogressive metamorphosis.
   (f) Briefly narrate with examples of nest building behaviour of any five fishes.
   (g) Briefly describe the aerodynamic principle of bird’s flight.
   (h) Distinguish between Archeornithes and Neornithes.

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