Questions for 30 july zoology

Q:-1 Discuss the origin of mammals and briefly explain adaptations of aquatic mammals. (20)

Q:-2 Give the anatomical features of pituitary gland. Describe its secretions regulating other endocrine glands with feedback mechanism. (15)

Q:-3 Compare the features monotremata and marsupials. How they are different from primates. (15)

Q:-4 What is speciation? How natural selection operates? (10)

Q:-5 Define isolation. Give various isolation mechanism and describe how they are contributing to speciation? (20)

Q:-6 Compare the Batesian and Mullerian mimicry. Discuss evolutionary significance of mimicry. (20)

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CANAL SYSTEM IN Porifera

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Parasitic adaptation of Taenia

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Retrogressive Metamorphosis

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