Explain the different indices of acute toxicity i.e. LD50, LC50 and LTs and significance of these values.

Sex determination

Parthenogenesis

Polyembryony

 Paedogenesis

 Paedogenesis

 Spermatogenesis

Explain the hormonal link between flight and egg production with suitable examples.

Explain the impulse transmission process in insects.

Discuss various respiratory methods employed by aquatic insects.

Discuss the functions of haemolymph.

Discuss the functions of haemolymph.

Explain mechanism of circulation in insects.

Compare the process of osmoregulation in terrestrial and aquatic insects.

 Explain the structure and function of Malpighian tubules in insects.

Name the hormones controlling moulting and metamorphosis in insects. Describe the hormonal control of moulting and metamorphosis in detail.

Briefly describe the concept of entomotoxicology and the analysis processes involved. How do these analyses help in criminal investigations?

What is coupe system in artificial inoculation of brood lac? Differentiate between Kusumi and Rangeeni coupe. Name the crops for which they are practiced during cultivation.

 Differentiate between Chawki and Old-age rearing. Explain in terms of feeding and spacing of silkworms.

. Write the objective of Integrated Vector Management (VM). Describe the five key elements that have been identified by WHO for the

successful implementation of IVM. b). Explain the life cycle of honeybees with the help of a suitable diagram. Describe the ways they communicate with each other to gather good quality of food for the colony.