Animal Behaviour — DU B.Sc. (Hons.) Zoology Previous Year Question Papers

5. (a)' Why are honeybees referred to as eusocial insects? Describe with a relevant diagram how do for aging honeybees communicate among theinselves about the food source when a good quality food is located beyond loo meters away from the hive. 8 Name of the Pa.per (b)` Discuss the infanticide behaviour of males. What tactics are adopted by females to counter the infanticide by the males? 7 6. Write short notes on any three of the following : : Animal Behaviour - (NEP-UGCF) Tlme .. 2 Hours Mouth:mum Marks : 60 (a) Egg .rolling behaviour o.f graylag geese (b) Cotirtship in three-spin'ed Stickleback Fish (c) i Stiiulus filtering (e) Artificial In_telligence (b) Attempt four questions in all including (f) Role of studying animal behaviour in wildlife conservation enefine the following (Any four) : 1x4=4 (v) Intrasexual selection (vi) Code breaker (b) Differentiate between the following by giving one relevant example each (any four) : (ii) Habituation and Reinforcement (iii) Kinesis and Taxis (iv) Simple Reflex and the Conditioned (v) Polyandry and polygyny (c) Match the List-I with List-II : 0.5×6=3 List-I List-II (Scientists) (Contributions) (i) Konrad Lorenz (a) Classical (ii) Ivan Pavlov (b) Operant (ill) Karl von Frisch (c) Tail wagging dance in honeybees (iv) Robert Trivers (d) Kin Selection (v) W.D. Hamilton (e) Imprinting (vi) B.F. Skinner (f) Reciprocal 2. (a) Define communication. Critically analyse the significant roles of tactile, auditory and visual communication by giving two appropriate examples each. 8 (b) Discuss in detail how is the Fixed action pattern differed from an imprinted or a conditioned response by giving relevant examples. 7 3 (a) What is courtship and describe the adaptive significance of the courtship behaviour? Describe briefly the courtship rituals in an insect and a bird. 8 (b) What is an altruistic behaviour? How is altruistic behaviour explained by kin selection? 7 4 (a) What do you understand by the term learnt behaviour? Describe in detail by giving appropriate examples the diversity of learnt behaviours. 8 (b) What is conditioned reflex? When will you say that conditioning has taken place with respect to a stimulus? Explain by designing an experiment.