IFS Zoology Papers 2003
IFS Zoology 2003
Paper-I
Section A

Write briefly on any four of the following in not more than 150 words each:

Bilateral symmetry

Compare the brain of fish with that of mammal

Trochophore larva

Gonadal hormones in man

Structure and functions of uriniferous tubules

Answer the following questions

Discuss the affinities and phylogenetic considerations of Hemichordata

Give the salient features of the phylum Annelida and classify the same up to classes citing distinguishing characters and examples

Answer the following questions

Give a detailed account of reproduction in Protozoa

Discuss the salient features and canal system in sponges

Describe with illustrations the structure and working of mammalian eye

Section B

Write notes on any four of the following in not more than 150 words each:

Predator

Components of ecosystem

Sitophilus oryzae

Null hypothesis

Pollution and its impact on biosphere

Give an account of natural resources, explain the importance of their conservation and discuss critically the present position of wild life conservation in India

Answer the following questions

Discuss the role of insect vecors in spreading epidemics in man. Add a note on preventive measures

Discuss the environmental cues that help in bird migration

Answer the following questions

Describe the principles and applications of flame photometry

What are the statistical parameters to be considered in designing laboratory and field experiments