1. Discuss the salient features of subphylum urochordata by giving example of its each
class.
(10)
2. Discuss the distinguishing features of reptiles in comparison to Amphibians. (15)
3. Explain the adaptation of birds particularly in relation to flight. (10)
4. Write notes on migration and navigation in birds. (5)
5. Describe the specialised derivatives of the integuments in mammals. (10)
6. Discuss the various modifications that have taken place in digestive system of
mammalian vertebrates in relation to their feedings habits.
(10)
7. Describe the lymphatic system of vertebrates. (10)
8. Explain the variations in urinary system of vertebrates belonging to different groups. (10)
9. Discuss the speed and stability of horse. (5)
10. Write short notes on the following:
(a) Imprinting
(b) Mimicry
(c) Defense in animals
(15
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Sailent features of subphylum urochordata are:
•Urochordates are also called as tunicates.
•Body is covered by a covering made of tunicine.
•Notochord is present only in the larval tail region.
•Exclusively marine animals.
•Pharynx has many Gill slits.
•Examples: salpa,doliolum,herdmania,ascidia
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Answer:
A for Apple
B for big Apple
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