A company repays part of long-term loan. In cash flow

Which of the following scientists are credited with the discovery and understanding of the excretory role of Malpighian tubules in insects?

Ratio of yield of photochemical product to total number of quanta used is called as ___

World Fisheries day is observed on _____

The body temperature of insects normally follows closely the temperature of the surrounding and hence, it is termed as

Enzyme that fixes CO₂  in C4 plants at Iow concentrations?

In which of the following condition nitrification occurs rapidly?

Which one of the following is not a measure of 'Income-inequality': 

Which of the following features is most typical of horticultural crops compared to field crops?

How do termites differ from honeybees in colony structure and reproductive mechanisms?

What sensory organs are typically found in the head of an insect?