Written in accordance with the latest MHT-CET Paper Pattern which includes topics based onStd. XII Sci. and relevant chapters of Std. XI Sci. (Maharashtra State Board)MHT-CETTRIUMPHontentBIOLOGYSalient FeaturesIncludes chapters of Std. XII and relevant chapters of Std. XI as per latestMHT-CET Syllabus ‘5304’ MCQs including questions from various competitive exams Exhaustive subtopic wise coverage of MCQs Quick review provided for each chapter Exhaustive coverage of various competitive exam questions till the latest yearEvaluation test provided at the end of each chapter Two Model Question Papers with Answer Keys and Solutions provided in the form of QRCodeeC Scan the adjacent QR code todownload Model Paper II andSolution.Scan the adjacent QR code todownload Hints for relevantquestions and Solutions toEvaluation Test in PDF format.SamplScan the adjacent QR code todownload Model Paper I andSolution.Printed at: Print to Print, Mumbai Target Publications Pvt. Ltd.No part of this book may be reproduced or transmitted in any form or by any means, C.D. ROM/Audio Video Cassettes or electronic, mechanicalincluding photocopying; recording or by any information storage and retrieval system without permission in writing from the Publisher.Balbharati Registration No.: 2018MH0022TEID: 1920P.O. No. 1697
PREFACE“Don’t follow your dreams; chase them!”- a quote by Richard Dumbrill is perhaps the most pertinent forone who is aiming to crack entrance examinations held after std. XII. We are aware of an aggressivecompetition a student appearing for such career-defining examinations experiences and hence wanted tocreate books that develop the necessary knowledge, tools and skills required to excel in theseexaminations.ontentFor the syllabus of MHT-CET 2021, 80% of the weightage is given to the syllabus for XII standard whileonly 20% is given to the syllabus for XI standard (with inclusion of only selected topics).Although the syllabus for Std. XI - XII and MHT-CET is aligned, the outlook to study the subject shouldbe altered based on the nature of the examination. To score in MHT-CET, a student has to be not just goodwith the concepts but also quick to complete the test successfully. Such ingenuity can be developedthrough sincere learning and dedicated practice.Having thorough knowledge of theory and its applications is a prerequisite for solving MCQs of Biology.Students must know the important processes and mechanisms that formulate the basics of the chapter.Biology is conveyed using diagrams and figures; therefore, students should study and understand themwell. Students should aim to study integrated concepts and relate them to their real – life applications inorder to visualize a clear map of the entire concept. It should be kept in mind that every single line of texthas potential of generating several MCQs.CAs a first step to master MCQ solving, students should start with elementary questions. Once a momentumis gained, complex MCQs with higher level of difficulty should be practised. Relevant questions fromprevious years as well as from other similar competitive exams should be solved to obtain an insight aboutplausible questions.Competitive exams challenge the understanding of students about subject by combining concepts fromdifferent chapters in a single question. To figure these questions out, cognitive understanding of thesubject is required. Therefore, students should put in extra effort to practise such questions.eSuch a holistic preparation is the key to succeed in the examination!To quote Dr. A.P.J. Abdul Kalam, “If you want to shine like a sun, first burn like a sun.”plOur Triumph Biology book has been designed to achieve the above objectives. Commencing from basicMCQs the book proceeds to develop competence to solve complex MCQs. It offers ample practice ofrecent questions from various competitive examinations. While offering standard solutions in the form ofconcise hints. Each chapter ends with an Evaluation test to allow self-assessment.mFeatures of the book presented on the next page will explicate more about the same!We hope the book benefits the learner as we have envisioned.SaThe journey to create a complete book is strewn with triumphs, failures and near misses. If you thinkwe’ve nearly missed something or want to applaud us for our triumphs, we’d love to hear from you.Please write to us on: email@example.comFrom,PublisherEdition: FirstBest of luck to all the aspirants!
FEATURESQuick ReviewQuick ReviewDNA PackagingontentIn ProkaryotesHU (Histone like DNAbinding proteins) proteins andenzymes like DNA gyrase andDNA topoisomerase IQuick Review includes tables/ flowcharts to summarize the key points inthe chapter.This is our attempt to help students toreinforce key concepts.In EukaryotesHistone and Nonhistone chromosomalproteinsClassical ThinkingClassical Thinking1.3.1 Mendelian GeneticsThe transmission of genetic information fromparental generation to next generation is knownas(A) hybridization(B) heredity(C) crossing over(D) variationCClassical Thinking section encompassesstraight forward questions includingknowledge based questions.This is our attempt to revise the chapterin its basic form and warm up thestudents to deal with complex MCQs.Critical ThinkingeWhich of the following is INCORRECT regardingnervous system of Hydra?(A) It shows diffused nervous system.(B) It is the most primitive nervous system.(C) It consists of sensory cells and nerve cells.(D) It has well developed central nervoussystem.Sam1.Nervous Co-ordination in Lower Animalspl9.1Critical ThinkingCompetitive ThinkingCompetitiveThinkingsectionencompasses questions from variouscompetitiveexaminationslikeMHT CET, AIPMT/NEET-UG, etc.This is our attempt to give the studentspractice of competitive questions andadvance them to acquire knack essentialto solve such questions.Critical Thinking section encompasseschallenging questions which testunderstanding, rational thinking andapplication skills of the students.This is our attempt to take the studentsfrom beginner to proficient level insmooth steps.Competitive Thinking5.21.Chemical Evolution of LifeThe first cell or primitive cells were[MHT CET 2019](A) marine and heterotrophic(B) terrestrial and autotrophic(C) marine and autotrophic(D) terrestrial and heterotrophic
FEATURESSubtopic wise segregationSubtopicsAsexual Reproduction1.2Sexual Reproduction1.3Microsporogenesis1.4Structure of Anatropous Ovule1.5MegasporogenesisEvery section is segregated sub-topicwise.This is our attempt to cater toindividualistic pace and preferences ofstudying a chapter and enabling easyassimilation of questions based on thespecific tify the labels i and ii in the given diagramof HIV particle.m41.pleCThe Miscellaneous section incorporatesMCQswhosesolutionsrequireknowledge of concepts covered indifferent sub-topics of same chapter orfrom different chapters.This is our attempt to develop cognitivethinking in the students essential tosolve questions involving fusion ofmultiple key concepts.Read the following statements with respect to genelibrary and select the correct option.i.Gene library is a collection of different DNAsequences from an organism where eachsequence has been cloned into a vector.ii.Gene library is created for ease ofpurification, storage and analysis of desiredgenes.(A) Statement i is correct whereas statement ii isincorrect.(B) Statement ii is correct whereas statement i isincorrect.(C) Both statements i and ii are incorrect.(D) Both statements i and ii are correct.iDiagram Based QuestionsSaii(A)(B)(C)(D)i – gp120, ii – gp 41i – Capsid protein, ii – gp 41i – gp 120, ii – Capsid proteini – gp 41, ii – gp120Diagram based questions includechallengingquestionsbasedonimportant diagrams/ figures in thechapter.This is our attempt to facilitate students’conceptual understanding and enhancetheir spatial thinking ability.
FEATURESEvaluation testEvaluation Test12.During pregnancy test, is detected in theurine.(A) LH(B) hCG(C) FSH(D) ACTHontentEvaluation Test covers questions fromchapter for self-evaluation purpose.This is our attempt to provide thestudents with a practice test and helpthem assess their range of preparationof the chapter.MHT-CET PAPER PATTERN There will be three papers of Multiple Choice Questions (MCQs) in ‘Mathematics’, ‘Physics andChemistry’ and ‘Biology’ of 100 marks each.Duration of each paper will be 90 minutes.Questions will be based on the syllabus prescribed by Maharashtra State Board of Secondary andHigher Secondary Education with approximately 20% weightage given to Std. XI and 80% weightagewill be given to Std. XII curriculum.Difficulty level of questions will be at par with JEE (Main) for Mathematics, Physics, Chemistry and atpar with NEET for Biology.There will be no negative marking.Questions will be mainly application based.Details of the papers are as given below: C SubjectPaper IMathematicsPhysicsChemistryBiologyplPaperPaper IIPaper III Approximate No. of MultipleChoice Questions (MCQs) based onStd. XIStd. XII1040104010402080e Mark(s) PerQuestionTotalMarks210011001100SamQuestions will be set oni.the entire syllabus of Std. XII of 2021 of Physics, Chemistry, Mathematics and Biology subjectsof excluding portion which is deleted by Maharashtra State Bureau of Textbook Production andCurriculum Research, Pune andii.chapters / units from Std. XI curriculum as mentioned below:Sr. apters / Units of Std. XIMotion in a plane, Laws of motion, Gravitation, Thermal properties ofmatter, Sound, Optics, Electrostatics, SemiconductorsSome Basic Concepts of Chemistry, Structure of Atom, ChemicalBonding, Redox Reactions, Elements of Group 1 and Group 2, States ofMatter: Gaseous and Liquid States, Basic Principles and techniques ofChemistry, Adsorption and Colloids, HydrocarbonsTrigonometry - II, Straight Line, Circle, Measures of Dispersion,Probability, Complex Numbers, Permutations and Combinations,Functions, Limits, ContinuityBiomolecules, Respiration and Energy Transfer, Human Nutrition,Excretion and osmoregulation
CONTENTSSr. No.TextbookChapter No.Chapter NamePage No.Std. XI6Biomolecules1213Respiration and Energy Transfer15314Human Nutrition27415Excretion and Osmoregulationontent139Std. XII1Reproduction in Lower and Higher Plants5862Reproduction in Lower and higher Animals8473Inheritance and Variation11584Molecular Basis of Inheritance14495Origin and Evolution of Life170106Plant Water Relation192117Plant Growth and Mineral Nutrition211128Respiration and Circulation232139Control and Coordination2611410Human Health and Diseases2941511Enhancement of Food Production3151612Biotechnology3401713Organisms and Population35714Ecosystem and Energy Flow36815Biodiversity, Conservation and Environmental Issues381em19pl18C5SaNote: Subtopics belonging to the reduced syllabus for year 2020-21 are represented withQuestions of Standard XI are indicated by ‘*’ in each Model Question Paper.Rmark.DisclaimerThis reference book is transformative work based on XI and XII Std. Biology Textbook; Reprint 2019 and First edition: 2020 respectively, publishedby the Maharashtra State Bureau of Textbook Production and Curriculum Research, Pune. We the publishers are making this reference book whichconstitutes as fair use of textual contents which are transformed by adding and elaborating, with a view to simplify the same to enable the students tounderstand, memorize and reproduce the same in examinations.This work is purely inspired upon the course work as prescribed by the Maharashtra State Bureau of Textbook Production and Curriculum Research, Pune.Every care has been taken in the publication of this reference book by the Authors while creating the contents. The Authors and the Publishers shall not beresponsible for any loss or damages caused to any person on account of errors or omissions which might have crept in or disagreement of any third party onthe point of view expressed in the reference book. reserved with the Publisher for all the contents created by our Authors.No copyright is claimed in the textual contents which are presented as part of fair dealing with a view to provide best supplementary study material forthe benefit of students.
TextbookChapter No.15Biodiversity, Conservation andEnvironmental Issues15.0 Introduction15.1 Levels of Biodiversity15.2 Patterns of BiodiversityGreat Indian BustardOncewidelyspottedacross 11 states, theGreat Indian Bustard iscurrently listed under thecategory of, “CriticallyEndangered birds”, in the2013 ‘Threatened bird’list by the IUCN.15.3 Biodiversity: Current Scenario15.4 Loss of Biodiversity15.5 Conservation of Biodiversity15.6 Biological Diversity Act 200215.7 Environmental IssuesR15.8 Greenhouse Effect and Global WarmingR15.9 Ozone DepletionR15.10 DeforestationSampleCR15.11 Mission Harit MaharastraontentSubtopics381
MHT-CET Triumph Biology (MCQs)Quick ReviewCauses of Biodiversity LossHabitat destruction and fragmentation.Over-exploitationAlien species invasionCoextinction of species.ontent BIODIVERSITYRed List or Red Data BookConservationPublished by IUCN (International Unionfor Conservation of Nature and NaturalResources) containing list of endangeredplant and animal species.Extinct Species Species in which the last individualhas died or is not recordedex situ Conservation Conservation of endangered speciesCExtinct in wild Species whose members survive onlyin captivityin situ Conservationof species in theirnatural ralreserves,Biosphere Reserves, sacred groves ConservationeEndangered Species Species that possess a very high riskof extinction as a result of rapidpopulation decline of 50 to more than70 percent over the previous 10 years(or three generations)mplVulnerable Species Species that possess a very high riskof extinction as a result of rapidpopulation decline of 30 to more than50 percent over the previous 10 years(or three generations).SaNear Threatened Species that are close to becomingthreatened or may meet the criteria forthreatened status in the near future.Least concern Species that are pervasive andabundant after careful assessmentData deficient Species in which the amount ofavailable data related to its risk ofextinction, is lacking in some way.Not evaluated Any of the nearly 1.9 million speciesdescribed by scientists, but notassessed by the IUCN382outside their natural habitats.eg. Botanical gardens, Culturecollections, Zoological Parks.
Chapter 15: Biodiversity, Conservation andEnvironmental issuesNoise PollutionSolid waste management Noise is included as an air pollutant Exposure to sound above 150 dB can damage ear Burning dumps are breeding grounds for rats anddrums and cause loss of hearing Sleeplessness, increased heartbeat, psychologicalstress, etc. Common sources : Transportation, Machines,construcion sites, industries etc. Sanitary landfills are a substitute Waste segregation at source E waste processed separatelyontentfliesENVIRONMENTAL ISSUESAir PollutionWater PollutionCausesCauses Industrial Pollutants CO, CO2, H2S, Domestic Wastes Human and animal excreta, detergents, food residues, cleaning agents, etc.Industrial Wastes Chemical and metallurgicalindustries, food processing plants, paper and sugarmills, textiles, oil refineries, etc.Agricultural Wastes Fertilizers and Pesticides.Thermal Wastes Thermal and nuclear powerplants.Radioactive Waste Nuclear power plants.Marine Pollution Oil spills, offshore drillingrigs.C SO2, NO, hydrocarbons, chlorine, etc.Automobiles CO, NO, Hydrocarbons.Burning of Fuels CO2, CO, CH4,hydrocarbons, soot.Agriculture Pesticides and Insecticides.Natural Pollutants Pollen, spores, fur,etc.Aerosol Sprays and Refrigerators CFCs.Smoking CO, Hydrocarbons. EffectseEffects Adverse effect on respiratory system Poor yield of crops and premature death ofplantspl Carbon monoxide is a poisonus gas NO2 and NO combine with water vapour tomform nitric acid which causes irritation toeyes and lungs and can also cause injury toliver and kidneys. Smoke can cause breathlessness, chestmuscle contraction, irritation in eyes, asthmaand allergyIncrease in biolchemical oxygen demand(BOD)Algal bloomsCultural or Accelerated EutrophicationBiomagnification of toxic compounds like DDTand mercury through food chain Loss od aquatic flora and fauma Control Measures Ecological sanitation (Ecosan toilets) Recycling sewage water by reverse osmosis Rain water harvestingSaControl Measures Use of electrostatic precipitators (ESP) toremove particulate pollutants. Exhaust gas scrubbers to remove SO2 likegases Catalytic cobverters to be used in motorvehicles Following Bharat Stage Emission Standards Use of CNG instead of petrol.383
MHT-CET Triumph Biology (MCQs)GLOBAL WARMING Greenhouse Effect and Global Warming Greenhouse effect is the heating-up of the earth’s ontentatmosphere due to trapped infra-red rays reflectedfrom the earth’s surface by atmospheric gases. Gases responsible for global warming CO2, N2O,CH4, CFCs. Global warming results in hotter summers,desertification, change in rainfall pattern, flooding,melting of polar ice-caps and glaciers. Control measures to check global warming includegrowing more trees, minimizing use of fossil fuels, useof organic manure and biofertilizers, and developingsubstitutes for CFCs.Ozone DepletionOzone layer acts as a protective shield for life on theearth from the harmful UV rays of the sun.A large area of thin ozone layer is formed in theAntarctica region which is commonly called Ozonehole.Chlorofluorocarbons (CFCs) are mainly responsiblefor the depletion of ozone layer.Depletion of ozone layer results in damage to skincells, skin cancer, cataract, permanent damage tocornea and snow blindness. Deforestation Deforestation is the permanent removal, decrease ordeterioration of forests and woodlands. It results in loss of biodiversity, reduced soil fertility,soil erosion, global warming, global climatic changesand increased accidents of landslides.15.1 Levels of Biodiversity15.0 IntroductioneBiodiversity includes(A) microorganisms, plants, algae, fungi andanimals(B) only microorganisms, algae and fungi(C) only plants and animals(D) only animalsDiversity is with respect to(A) colour, form, size and shape of organismsonly(B) mode of nutrition and type of habitat only(C) reproductive cycle, duration of life span,type of habitat only(D) size, shape, colour, form, mode ofnutrition, type of habitat, reproduction,motility, duration of life span, etc.m2.Part of nature which includes the differences inthe genes among the individuals of species, thevariety and richness of all plants and animalspecies at different scales in a space and thetypes of ecosystem within a defined area iscalled(A) ecology(B) biodiversity(C) habitat(D) nicheSa3.4.384Which of the following is/ are a level(s) ofbiodiversity?(A) genetic diversity(B) species diversity(C) ecosystem diversity(D) all of these6.Complete the analogy.Intraspecific diversity: GeneticInterspecific diversity:(A) Species diversity(B) Ecosystem diversity(C) Ecological diversity(D) Allelic diversitypl1.5.CClassical ThinkingThe term biodiversity was coined by(A) Walter Rosen(B) Gregor Mendel(C) Oparin and Haldane(D) Huxleydiversity::7.The number of species of plants and animalsthat are present in a region, constitutes its(A) species diversity(B) community diversity(C) interspecific diversity(D) all of these8.Variety of species is known as species(A) richness(B) evenness(C) unevenness(D) both (A) and (B)9.Species diversity deals with(A) species richness(B) species evenness(C) intraspecific diversity(D) both (A) and (B)
10.diversity is related to the differenttypes of ecosystems/ habitats within a givengeographical area.(A) Ecological(B) Species(C) Community(D) Genetic(C)(D)According to the Rivet Popper hypothesis whichof the following analogy is INCORRECT?(A) Rivets – Species(B) Aeroplane – Ecosystem(C) Rivets in key positions – Key species(D) None of these21.Loss of species will cause a threat tothe ecosystem in a very short span of time.(A) key(B) endangered(C) invasive(D) apex predator15.16.ontentWho gave the species – area relationship?(A) Alexander Von Humboldt(B) Walter Rosen(C) Edward Wilson(D) Charles DarwinFor many species the graph of species – arearelationship is generally(A) rectangular parabola(B) rectangular hyperbola(C) sigmoid(D) J shapedWhat is the formula of species – arearelationship?(A) log S log C Z log A(B) log A log S C log Z(C) log S log C A log Z(D) log Z log C S log AThe species-area relationship equation is givenas log S log C Z log A . For smaller area, thevalue of Z ranges from .(A) 0.1 to 0.2(B) 10 to 20(C) 0.2 to 0.6(D) 0.6 to 1.2Sam17.Species richness is maximum in the(A) Amazon rainforest(B) Polar regions(C) Temperate zone(D) Australian continent220.127.116.11 Biodiversity: Current Scenario22.million species have been documentedas per IUCN data (2004)(A) 1.5(B) 2.5(C) 8(D) 6.223.Out of the 18,00,000 known species,occupies the largest portion.(A) Eubacteria(B) Animals(C) Plants(D) FungiC14.higher latitudesboth (A) and (C)e13.Species richness is high at(A) lower latitudes(B)(C) higher altitudes(D)pl12.Which of the following habitat(s) showlatitudinal and altitudinal gradient?(A) arid(B) aquatic(C) semiarid(D) all of thesei – Edward Wilson, i – Rivet Popperi – Paul Ehrlich, ii – Productivity-Stability20.15.2 Patterns of Biodiversity11.Chapter 15: Biodiversity, Conservation andEnvironmental issuesRich species diversity leads to lesser variation inbiomass production over a period of time. Thisis called(A) Productivity – Stability Hypothesis(B) Rivet Popper Hypothesis(C) Productivity – Biomass Hypothesis(D) RNA world hypothesisThe significance of diversity is explained by(i) in the (ii) hypothesis.(A) i – Paul Ehrlich, ii – Rivet Popper(B) i – Walter Rosen, ii – ProductivityStability24.Which of the following is the most abundantamong the different known species of animals?(A) Vertebrates(B) Invertebrates(C) Molluscs(D) Insects25.Out of the total number of known plant species,which of the following is most in number?(A) Monocots(B) Dicots(C) Ferns(D) Conifers26.India has about of the total land area ofthe world.(A) 2.4%(B) 1.5%(C) 3.0%(D) 0.5%27.According to Robert May, we have recordedonly % of our natural wealth.(A) 14(B) 22(C) 5(D) 1815.4 Loss of Biodiversity28.Identify the type(s) of extinction of species.(A) Mass extinction(B) Natural extinction(C) Anthropogenic extinction(D) All of these29.All of the following are natural reasons ofextinction of species, EXCEPT(A) Earthquakes(B) Hunting(C) Volcanic eruptions(D) Forest fires385
Page no. 386 to 392 are purposely left blank.To see complete chapter buy Target Notes or Target E‐Notes
21.CFCs released in the atmosphere(A) move upwards to the mesosphere(B) are acted upon by UV rays to releasefluorides(C) form Cl- molecules that degrade ozone(D) both (A) and (B)(A)(B)(C)(D)4.15.10 DeforestationThe National Forest Policy, 1988 recommends% forest cover for plains and% forest cover for hills.(A) 33, 67(B) 67, 33(C) 20, 44(D) 30, 1523.The following statements about deforestationare true except,(A) deforestation has caused extinction ofspecies and soil erosion.(B) deforestation has led to the developmentof suitable environment.(C) deforestation has caused shrinking of fuelwood and shortage of timber.(D) deforestation has increased the incidentsof landslides.Which of the following is the most importantcause for animals and plants being driven toextinction?[NEET (UG) 2019](A) Economic exploitation(B) Alien species invasion(C) Habitat loss and fragmentation(D) Drought and floodsMoirangthem Loiya is famous for all thesecontributions, EXCEPT(A) Restoring Punshilok Forest(B) Planting 385 banyan trees in Hulikal andKudur(C) Restoring a forest cover of over 250varieties of plants(D) Planting bamboo, oaks, ficus, teak,jackfruit and Magnolia on a large scale5.Decline in the population of Indian native fishesdue to introduction of Clarias gariepinus inriver Yamuna can be categorised as[NEET Odisha 2019](A) Alien species invasion(B) Co-extinction(C) Habitat fragmentation(D) Over exploitation15.5 Conservation of Biodiversity6.The organization which publishes the Red Listof species is[AIPMT 2014](A) ICFRE(B) IUCN(C) UNEP(D) WWFC24.Habitat loss and fragmentationCo-extinctionOver-exploitationAlien species invasionontent22.Chapter 15: Biodiversity, Conservation andEnvironmental issuesRed List contains data or information on[NEET P-II 2016](A) marine vertebrates only(B) all economically important plants(C) plants whose products are in internationaltrade(D) threatened species8.The ‘Red Data Book’ records [WB JEEM 2015](A) species diversity of wetlands.(B) list of water pollutants.(C) list of threatened species.(D) rate of population decline.9.A Red list of endangered species is maintainedby[MH CET 2015](A) CSIR(B) IUCN(C) NEERI(D) WLS15.4 Loss of Biodiversity10.One of the chief reasons among the followingfor the depletion in the number of speciesmaking it endangered is[KCET 2014](A) Over-hunting and poaching(B) Greenhouse effect(C) Competition and predation(D) Habitat destructionHow many hot spots of biodiversity in the worldhave been identified till date by Norman Myers?[NEET P-II 2016](A) 43(B) 17(C) 25(D) 3411.Cryopreservation of gametes of threatenedspecies in viable and fertile condition can bereferred to as:[AIPMT 2015](A) In situ conservation of biodiversity.(B) Advanced ex-situ conservation ofbiodiversity.(C) In situ conservation by sacred groves.(D) In situ cryo-conservation of biodiversity.e7.plCompetitive Thinking15.2 Patterns of BiodiversityAlexander Von Humboldt described for the firsttime[NEET (UG) 2017](A) Ecological Biodiversity(B) Laws of limiting factor(C) Species area relationships(D) Population Growth equationSam1.2.3.Which of the following is the most importantcause of animals and plants being driven toextinction?[NEET P-I 2016]393
MHT-CET Triumph Biology (MCQs)13.Which one of the following is NOT the in situconservation of biodiversity?[MHT CET 2018](A) Zoological parks(B) Wildlife sanctuaries(C) National parks(D) Biosphere reservesWhich one of the following is NOT a method ofin situ conservation of biodiversity?[NEET (UG) 2019](A) Botanical garden(B) Sacred grove(C) Biosphere reserve(D) Wildlife sanctuary20.All of the following are included in ‘ex-situconservation’ except[NEET (UG) 2018](A) Botanical gardens(B) Sacred groves(C) Wildlife safari parks(D) Seed banks15.An example of ex situ conservation is[AIPMT 2014](A) National Park(B) Seed Bank(C) Wildlife Sanctuary (D) Sacred grove16.Which one of the following is related to ex-situconservation of threatened animals and plants?[NEET (UG) 2017](A) Wildlife Safari parks(B) Biodiversity hot spots(C) Amazon rainforest(D) Himalayan region21.15.7 Environmental Issues22.394Which one of the following represents naturalpollutants?[MHT CET 2019](A) dusts , pollen and carbon monoxide(B) pollen,dustsfromdesertandhydrocarbons from vegetation(C) smog , fog and dust(D) pollen fibres and sulphur dioxidepl24.Which one of the following is NOT an exampleof ex-situ conservation of endangered species?[MHT CET 2017](A) Zoological park(B) National park(C) Culture collection(D) Botanical gardenHigh value of BOD (Biochemical OxygenDemand) indicates that[AIPMT 2015](A) Water is pure.(B) Water is highly polluted.(C) Water is less polluted.(D) Consumption of organic matter in thewater is higher by the tion of non-degradable pollutants fromlower to higher trophic levels is called[WB JEEM 2015](A) biomagnification (B) bioaccumulation(C) biodegradation(D) bioinvasion26.Increase in the concentration of a pollutant onsuccessive trophic levels in an aquatic foodchain is called[TS EAMCET 2019](A) Biodegradation(B) EutrophicationeWhich of the following is NOT an ex-situconservation?[KCET 2015](A) Cryopreservation(B) Seed bank(C) Biosphere reserves(D) Botanical gardenA scrubber in the exhaust of a chemicalindustrial plant removes[AIPMT 2014](A) gases like sulphur dioxide.(B) particulate matter of the size 5micrometer or above.(C) gases like ozone and methane.(D) particular matter of the size 2.5micrometer or less.m19.The Earth Summit held in Rio de Janeiro in1992 was called:[NEET (UG) 2019](A) to assess threat posed to native species byinvasive weed species.(B) for immediate steps to discontinue use ofCFCs that were damaging the ozone layer.(C) to reduce CO2 emissions and globalwarming.(D) for conservation of biodiversity andsustainable utilization of its benefits.23.Sa18.The historic convention related to conservationof biological diversity is also known as[KCET 2019](A) Earth Summit(B) Kyoto Summit(C) World Summit(D) Montreal ProtocolC18.104.22.168 Biological Diversity Act 2002ontent12.In which of the following, both pairs haveCORRECT combination?[AIPMT 2015](A) In situ conservation: National ParkEx situ conservation: Botanical Garden(B) In situ conservation: CryopreservationEx situ conservation: Wildlife Sanctuary(C) In situ conservation: Seed BankEx situ conservation: National Park(D) In situ conservation: Tissue cultureEx situ conservation: Sacred groves
(C)(D)The highest DDT concentration in aquatic foodchain shall occur in[NEET P-II 2016](A) eel(B) phytoplankton(C) seagull(D) crab15.8 GreenhouseWarmingEffectandIn stratosphere, which of the following elementsacts as a catalyst in degradation of ozone andrelease of molecular oxygen?[NEET (UG) 2018](A) Fe(B) Cl(C) Carbon(D) Oxygen34.An international treaty known as MontrealProtocol was signed to control emission of[MH CET 2015](A) UV rays(B) Ozone(C) CFC(D) OxygenGlobal28.Which one of the following is NOT caused byglobal warming?[MHT CET 2018](A) M
For the syllabus of MHT-CET 2021, 80% of the weightage is given to the syllabus for XII standard while only 20% is given to the syllabus for XI standard (with inclusion of only selected topics). Although the syllabus for Std. XI - XII and MHT-CET is aligned, the outlook to study the subject
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Moisture Resistance MIL-STD-883, Method 1004 Moisture Sensitivity J-STD-020, MSL 1 Resistance to Soldering Heat MIL-STD-202, Method 210, Condition K Resistance to Solvents MIL-STD-202, Method 215 Solderability MIL-STD-883, Method 2003 Temperature Cycling MIL-STD-883, Method 1010, Condition B Vibrati
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