Ecosystem PYQs Set 5 (PDF)

Set 5 of 8 · Questions 121-150 of 211

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Mere Teacher · Previous Year Questions NEET Biology · Ecosystem · Set 5 (Q121-150)
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121. $Two butterfly species are competing for the same nectar of a flower in a garden. To survive and coexist together, they may avoid competition in the same garden by:$ (1) $feeding at the same time$ (2) $choosing different foraging patterns$ (3) $increasing time spent on attacking each other$ (4) $predating on each other$ 122. $Which one of the following is the correctly matched pair of an endangered animal and a National Park?$ (1) $Wild ass - Dudhwa National Park$ (2) $Great Indian - Keoladeo National Park Bustard$ (3) $Lion - Corbett National Park$ (4) $Rhinoceros - Kaziranga National Park$ 123. $Montreal protocol was signed in 1987 for control of :$ (1) $Disposal of e-wastes$ (2) $Transport of Genetically modified organisms from one country to another$ (3) $Emission of ozone depleting substances$ (4) $Release of Green House gases$ 124. $Sacred groves are specially useful in :-$ (1) $year round flow of water in rivers$ (2) $conserving rare and threatened species$ (3) $generating environmental awareness$ (4) $preventing soil erosion$ 125. $The highest number of species in the world is represented by :-$ (1) $Algae$ (2) $Lichens$ (3) $Fungi$ (4) $Mosses$ 126. $Mass of living matter at a trophic level in an area at any time is called :-$ (1) $Standing crop$ (2) $Detritus$ (3) $Humus$ (4) $Standing state$ 127. $A river with an inflow of domestic sewage rich in organic waste may result in :-$ (1) $Drying of the river very soon due to algal bloom.$ (2) $Increased population of aquatic food web organisms.$ (3) $An increased production of fish due to biodegradable nutrients.$ (4) $Death of fish due to lack of oxygen$ 128. $What type of ecological pyramid would obtained with the following data? Secondary consumer : 120 g, Primary consumer : 60 g, Primary producer : 10 g$ (1) $Inverted pyramid of biomass$ (2) $Pyramid of energy$ (3) $Upright pyramid of numbers$ (4) $Upright pyramid of biomass$ 129. $The second stage of hydrosere is occupied by plants like$ (1) $Typha$ (2) $Salix$ (3) $Vallisneria$ (4) $Azoll$ 130. $The upright pyramid of number is absent in :-$ (1) $Lake$ (2) $Grassland$ (3) $Pond$ (4) $Forest$ 131. $Which one of the following statements is not valid for aerosols?$ (1) $They alter rainfall and monsoonpatterns$ (2) $They cause increased agricultural productivity$ (3) $They have negative impact onagricultural land$ (4) $They are harmful to human health$ 132. $Which of the following is mainly produced by the activity of anaerobic bacteria on sewage?$ (1) $Laughing gas$ (2) $Propane$ (3) $Mustard gas$ (4) $Marsh gas$ 133. $Which of the following statements is incorrect regarding the phosphorus cycle?$ (1) $Phosphates are the major form of phosphorus reservoir$ (2) $Phosphorus solubilising bacteria facilitate the release of phosphorus from organic remains$ (3) $There is appreciable respiratory release of phosphorus into atmosphere$ (4) $It is sedimentary cycle$ 134. $The rate of decomposition is faster in the ecosystem due to following factors EXCEPT:$ (1) $Detritus rich in sugars$ (2) $Warm and moist environment$ (3) $Presence of aerobic soil microbes$ (4) $Detritus richer in lignin and chitin$ 135. $Match the following and select the correct option: Column-I (A) Earthworm (B) Succession (C) Ecosystem service (D) Population growth Column-II (I) Pioneer species (II) Detritivore (III) Natality (IV) Pollination$ (1) $(A)-(I), (B)-(II), (C)-(III), (D)-(IV)$ (2) $(A)-(IV), (B)-(I), (C)-(III), (D)-(II)$ (3) $(A)-(III), (B)-(II), (C)-(IV), (D)-(I)$ (4) $(A)-(II), (B)-(I), (C)-(IV), (D)-(III)$ 136. $Global agreement in specific control strategies to reduce the release of ozone depleting substances, was adopted by :-$ (1) $The Vienna Convention$ (2) $Rio janeiro Conference$ (3) $The Montreal Protocol$ (4) $The Koyoto Protocol$ 137. $Which of the following statements is not correct?$ (1) $Pyramid of biomass in sea is generally upright.$ (2) $Pyramid of energy is always upright.$ (3) $Pyramid of numbers in a grassland ecosystem is upright.$ (4) $Pyramid of biomass in sea is generally inverted.$ 138. $All of the following are included in 'Ex-situ conservation' except$ (1) $Wildlife safari parks$ (2) $Sacred groves$ (3) $Botanical gardens$ (4) $Seed banks$ 139. $In a hypothetical population of 100 individual having ‘r' = 0.5/female/year, what will be the population size in 6 years (with e = 2.72) showing exponential rate of growth?$ (1) $1218$ (2) $739$ (3) $2012$ (4) $448$ 140. $Which of the following ecologists has tried to put price-tags on nature’s life support services?$ (1) $David Tilman$ (2) $Robert Constanza$ (3) $Paul Ehrlich$ (4) $Robert May$ 141. $While explaining interspecific interaction of population, (+) sign is assigned for beneficial interaction, (-) sign is assigned for detrimental interaction and (0) for neutral interaction. Which of the following interactions can be assigned (+) for one species and (-) for another species involved in the interaction?$ (1) $Amensalism$ (2) $Commensalism$ (3) $Competition$ (4) $Predation$ 142. $Which one of the following is not observed in biodiversity hotspots?$ (1) $Lesser inter-specific competition$ (2) $Species richness$ (3) $Endemism$ (4) $Accelerated species loss$ 143. $In the equation GPP - R = NPP . GPP is Gross Primary Productivity NPP is Net Primary Productivity. R here is$ (1) $Reproductive allocation$ (2) $Photosynthetically active radiation$ (3) $Respiratory quotient$ (4) $Respiratory loss$ 144. $dB is a standard abbreviation used for the quantitative expression of :$ (1) $A certain pesticide$ (2) $The density of bacteria in a medium$ (3) $A particular pollutant$ (4) $The dominant Bacillus in a culture$ 145. $In 13 major cities, Bharat stage-IV emission norms have been in place since April 2010, and it has been enforced for entire country since$ (1) $April 2012$ (2) $April 2014$ (3) $April 2016$ (4) $April 2017$ 146. $A plant receives 1000 J of energy from sun. The amount of energy will be present at the second trophic level is$ (1) $1 J$ (2) $10 J$ (3) $100 J$ (4) $0.1 J$ 147. $Which biological process leads to decrease in fish-eating bird population near a water body containing toxicants from industrial drainage?$ (1) $Biochemical oxygen demand$ (2) $Accelerated Eutrophication$ (3) $Biomagnification$ (4) $Algal bloom$ 148. $DDT residues are rapidly passed through food chain causing biomagnification because DDT is :-$ (1) $Water soluble$ (2) $Lipo soluble$ (3) $Moderately toxic$ (4) $Non-toxic to aquatic animals$ 149. $Which one of the following statements is wrong in case of Bhopal tragedy?$ (1) $Methyl Isocyanate gas leakage took place$ (2) $Thousands of human beings died$ (3) $Radioactive fall out engulfed Bhopal$ (4) $It took place in the night of December 2/3, 1984$ 150. $High dose of UV-B causes inflammation of cornea and is called as :$ (1) $Colour-blindness$ (2) $Evening-blindness$ (3) $Snow-blindness$ (4) $UV-blindness$