MCQ 11 MarkWhich ecosystem has the maximum biomass?AGrass ecosystemBPond ecosystemCLake ecosystem✓Forest ecosystemAnswerCorrect option: D. Forest ecosystemDView full question & answer→
MCQ 21 MarkName of Ramdeo Mishra is associated with which field of research?✓EcologyBBiotechnologyCGreen revolutionDGeneticsAnswerCorrect option: A. EcologyAView full question & answer→
MCQ 31 MarkWhich of the following are decomposers?AFungi and algaeBFungi and virusCFungi and bacteria✓Fungi, bacteria and virusAnswerCorrect option: D. Fungi, bacteria and virusDView full question & answer→
MCQ 41 MarkGoing down of inorganic water soluble nutrients into the soil nutrients is called as :AFragmentation✓LeachingCCatabolismDHumificationAnswerCorrect option: B. LeachingBView full question & answer→
MCQ 51 MarkWhich of the following is not a producer?ASpirogyra✓AgaricusCVolvoxDNostocAnswerCorrect option: B. AgaricusBView full question & answer→
MCQ 61 MarkLithosphere is :ALifelessBNaked rocky regions✓Both (a) and (b)DAlgalAnswerCorrect option: C. Both (a) and (b)CView full question & answer→
MCQ 71 MarkWhich of the following does nitrogen fixation?ARhizobiumBPseudomonas✓Both (a) and (b)DYeastAnswerCorrect option: C. Both (a) and (b)CView full question & answer→
MCQ 81 MarkSecondary producers are related to?✓HerbivoresBProducersCCarnivoresDNone of theseAnswerCorrect option: A. HerbivoresAView full question & answer→
MCQ 91 MarkLichen is pioneer in succession of :AHydrosereBLithosere✓XerosereDBoth (b) and (c)AnswerCorrect option: C. XerosereCView full question & answer→
MCQ 101 MarkPlants that do not found in aquatic life?AHydrillaBTrapaCNilambo✓AcaciaAnswerCorrect option: D. AcaciaDView full question & answer→
MCQ 111 MarkWhich pyramid is never inverted?ABiomass✓EnergyCNumberDSizeAnswerCorrect option: B. EnergyBView full question & answer→
MCQ 121 MarkCredit is given for the use of the Term :AGardnerBOdum✓TansleyDWarmingAnswerCorrect option: C. TansleyCView full question & answer→
MCQ 131 MarkClimax community is an a state of :ANon-equilibrium✓EquilibriumCDisorderDConstant changeAnswerCorrect option: B. EquilibriumBView full question & answer→
MCQ 141 MarkFlow of energy is an ecosystem is :✓UnidirectionalBBidirectionalCMultidirectionalDWithout directionAnswerCorrect option: A. UnidirectionalAView full question & answer→
MCQ 151 MarkPyramid of energy is :AAlways inverted✓Always uprightCSometimes upright and some-times invertedDNone of theseAnswerCorrect option: B. Always uprightBView full question & answer→
MCQ 161 MarkWhich of the following utilizes inorganic materials?✓AutotrophsBSaprophytesCHeterotrophsDDecomposersAnswerCorrect option: A. AutotrophsAView full question & answer→
MCQ 171 MarkBiogeochemical cycling means :ACycling of waterBCycling of energy in an ecosystem✓Cycling of nutrients in an ecosystemDCycling of gases between plants and the atmosphereAnswerCorrect option: C. Cycling of nutrients in an ecosystemCView full question & answer→
MCQ 181 MarkThe energy source for an ecosystem is :AATPBGreen plants✓SunDSugar produced by plantsAnswerCorrect option: C. SunCView full question & answer→
MCQ 191 MarkWho is secondary consumer in a food chain?AOmnivores✓HerbivoresCCarnivoresDProducerAnswerCorrect option: B. HerbivoresBView full question & answer→
MCQ 201 MarkWhich region is known as ‘Lungs of the heart’?ASilent Valley✓Amazon rain forestCWestern GhatsDEastern GhatsAnswerCorrect option: B. Amazon rain forestBView full question & answer→
MCQ 211 MarkSource of enery in any ecosystem is :AFermentation of sugarBDecomposition of plants and animals by bacteriaCPhotosynthesis by plants✓SunlightAnswerCorrect option: D. SunlightDView full question & answer→
MCQ 221 MarkDuring food chain the maximum energy is stored in✓ProducersBDecomposersCHerbivoresDCarnivoresAnswerCorrect option: A. ProducersAView full question & answer→
MCQ 231 MarkThe largest ecosystem isAForest ecosystem✓Marine ecosystemCPond ecosystemDGrassland ecosystemAnswerCorrect option: B. Marine ecosystemBView full question & answer→
MCQ 241 MarkBest type of pyramid which is always true is :✓Pyramid of energyBPyramid of BiomassCPyramid of numberDBoth (a) and (b)AnswerCorrect option: A. Pyramid of energyAView full question & answer→
MCQ 251 MarkEcology deals with :AThe earth and Satellite✓The relationship between organisms and their environmentCEconomical growth of poor peopleDThe life under seaAnswerCorrect option: B. The relationship between organisms and their environmentBView full question & answer→
MCQ 261 MarkWhat is the main cause of extinction of some species in tropical forests?✓DeforestationBAfforestationCPollutionDSoil erosinAnswerCorrect option: A. DeforestationAView full question & answer→
MCQ 271 MarkWhich one of the following is not used far construction of ecological pyramid?ADry weightBNumber of individualsCRate of energy flow✓Fresh weightAnswerCorrect option: D. Fresh weightDView full question & answer→
MCQ 281 MarkPrimary succession occurs in :APreviously occupied area✓Previously unoccupied areaCBoth of the aboveDNone of theseAnswerCorrect option: B. Previously unoccupied areaBView full question & answer→
MCQ 291 MarkAccording to you, which of the following has maximum rate of decomposition?✓Tropical rain forestBAntarcticaCDry areaDAlpine areaAnswerCorrect option: A. Tropical rain forestAView full question & answer→
MCQ 301 MarkHow much is the sun energy reflecting on the leaves are converted into chemical energy by photosynthesis?ALess than 1%✓2-10%C30%D50%AnswerCorrect option: B. 2-10%BView full question & answer→
MCQ 311 MarkAn inverted pyramid of biomass can be found in which eco-system?AForest✓MarineCGrasslandDTundraAnswerCorrect option: B. MarineBView full question & answer→
MCQ 321 MarkWhich of the following is an ecosystem service provided by a natural ecosystem?ACycling of nutrientsBPrevention of soil erosionCPollutent aborption and reduction of the threat of global warning✓All of the aboveAnswerCorrect option: D. All of the aboveDView full question & answer→
MCQ 331 MarkEdaphic Factor refers toAWater✓SoilCRelative humidityDAltitudeAnswerCorrect option: B. SoilBView full question & answer→
MCQ 341 MarkAmong the following bio-geochemical cycles which one does not have losses due to respiration?APhosphorusBNitrogenCSulphur✓All of the aboveAnswerCorrect option: D. All of the aboveDView full question & answer→
MCQ 351 MarkPyramid of number is :AAlways uprightBAlways inverted✓Either upright or invertedDNone of theseAnswerCorrect option: C. Either upright or invertedCView full question & answer→
MCQ 361 MarkSecond tropical level in ocean is :APlant plankton✓Animal planktonCBenthosDFishAnswerCorrect option: B. Animal planktonBView full question & answer→
MCQ 371 MarkIn food chain, which of the following is present in the maximum number?AProducersBPrimary consumerCSecondary consumer✓DecomposersAnswerCorrect option: D. DecomposersDView full question & answer→
MCQ 381 MarkWhich of the following is the most stable ecosystem?✓OceanBMountainCForestDDesertAnswerCorrect option: A. OceanAView full question & answer→
MCQ 391 MarkDecomposers are :AAutotrophs✓Auto-hetrotrophsCOrganotrophsDHeterotrophsAnswerCorrect option: B. Auto-hetrotrophsBView full question & answer→
MCQ 401 MarkIn the ecosystem herbivoures are :✓Primary ConsumerBSecondary ConsumerCTertiary ConsumerDAutotrophsAnswerCorrect option: A. Primary ConsumerAView full question & answer→
MCQ 411 MarkBiosphere means :AAtmosphereBLithosphere and Iono-sphere✓Atmosphere, lithosphere and hydrosphereDHydrosphere, lithosphere and ionosphereAnswerCorrect option: C. Atmosphere, lithosphere and hydrosphereCView full question & answer→
MCQ 421 MarkEcological food chain cannot begin in the absence of :✓ProducerBCarnivorousCDecomposerDConsumerAnswerCorrect option: A. ProducerAView full question & answer→