1. Fill in the blanks :1x5=5
(a)_____behaviour is rigid, genetically inbuilt and not influenced by environment.
(bThe interaction in which an individual sacrifices some of its own reproductive potentials to benefit another individual is called________
(c) Male bluster beetles drumming female's abdomen is communication a type of________Communication.
(d)_______type of learning happens in a narrow window of time shortly after birth.
(e) A______ is any external/environmentalcue that synchronizes an organism's biological rhythm.
2. Write short notes on any three of the following: 4×3=12
(a) Historical development of chronobiology
(b) Waggle dance
(c) Habituation
d) Chronotherapy
3. Write a comparative account on stereotyped and learned behaviour in animals.
Or
What do you mean by classical conditioning? Explain it with a suitable example. How does classical conditioning differ from operant conditioning?
4. What are eu social animals? State the advantages of animals living in society. Write some negative consequences of group living.
Or
1+4+4=9
What do you mean by sexual selection? Write an elaborative note on sexual conflict in parental care. 4+5=9
5. Circadian and circannual rhythms are found in almost all organisms. Explain why they are important to the survival of the organism. 9
Or
What do you mean by biological rhythm? Explain the role of environmental cues in biological rhythms. 4+5=9
6 Write explanatory notes on any two of the following:
(a) Chronomedicine
(b) Contributions of Konrad Lorenz and Niko Tinbergen in the field of animal behaviour
(c)Altruism
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