Paper-I
Section A

Write briefly on any four of the following in not more than 150 words each (10 × 4 40)

Types of spicules in sponges

Torsion in Gastropoda

Coral reefs and their formation

Types of Reptilian skulls

Mechanism and physiology of gill respiration in fishes.

Answer the following questions

Give the salient features of Phylum Mollusca and classify it up to classes cliting distinguishing characters and examples

Describe the affinities of Onychophora

Answer the following questions

Descriptive the life history of Ascaris

Give an account of the development of Obelia medusa

Pituitary gland is no longer considered as the leader of endocrine orchestra. Discuss

Section B

Write notes on any four of the following is not more than 150 words each (10 × 4 40)

Ecological succession

Seasonal and circadian rhythms

Carp culture

Application of Chi-square test in genetics.

Geiger-Muller counter

Discuss in detail the various factors the regulate the population growth

Answer the following questions

Give an account of status of Sericulture in India

Give an account of tropotaxis as a directed orientation reaction in animals

Answer the following questions

Describe the properties of normal distribution

Describe the principles and applications of S. E. M