CSS Zoology Past Paper 2022
PART-2(Subjective) 80 Marks
Attempt ONLY FOUR Questions from PART-II. (20×4)
PART-II
Q. No. 2 Explain in detail the most primitive metazoans and their evolution.
Q. No. 3 Write in detail the microscopic structure, skeleton, histology, and sexual reproduction & development of Sycon gelatinosum.
Q. No. 4 What are the general features of nematodes including physiology, prevalence, and economic importance?
Q. No. 5 How is genetic equilibrium upset? Explain.
Q. No. 6 Discuss in detail taxonomic characters and phylogenetic reconstruction.
Q. No. 7 Describe the mechanism of hormone actions.
Q. No. 8 Write in detail on extinction and biodiversity.