UPSC CDS 2 2019 English Paper

Question Numbers: 27-36Directions: Each of the following passages in this section has some blank spaces with four words or groups of words given. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.Ecology, in a very simple term, is a science that ______(1)_____ the interdependent mutually reactive and interconnected relationships ______(2)______the organisms and ______(3)_______ physical environment on the one hand and among the organisms on the other hand.______(4) ______ the term 'ecology' was first coined and used by the German biologist Ernst Haeckel in 1869, a few conceptual terms______(5)______already proposed to reveal relationships ______(6)______ organisms and their environment. For example, French zoologist I.G. Hilaire used the term 'ethology'______(7) ______ the study of the relations of______(8) _______ organisms within the family and society in the aggregate and in the community. British naturalist St. George Jackson Mivart proposed the term 'hexicology' with regard to the study of the relations______(9) _____ living creatures to other organisms and their environment as regards the nature of the locality they frequent, the temperatures and the______(10) ______ of light which suit them, and their relations to other organisms as enemies, rivals, or accidental and involuntary benefactors.