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)