CSS 2017 Zoology Paper

How has the role of forests been identified in mitigating climate change? What are the various mechanisms designed in this regard? Also, describe various controversies attached to these mechanisms.

How can the ecology of Arthropod vectors and their breeding habitats be manipulated at different levels to introduce novel strategies for integrated pest management (IPM)?

How are members of Hemichordata different from Chordates? Highlight the phylogenetic significance of different classes of Hemichordata.

Explain in detail the digestion of carbohydrates and fats in various segments of the gastrointestinal tract in simple-stomach animals.

One of the important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland. Enlist the releasing factors of the hypothalamus and their effects.

Describe the synthesis, transport, and functions of thyroid hormones. How is the secretion of thyroid hormones regulated in hyperthyroidism and hypothyroidism?

Write short notes on any FOUR: (a) Control of nematode parasites, (b) Neo-Darwinian theory, (c) Adaptability pattern of mammals, (d) Second messenger in hormone action, (e) Adaptation of fishes in cold and hot water.