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NEET REVISION SERIES LIVING WORLD Revise Most Important Questions to Crack NEET 2020 Download Doubtnut Now Q-1 - 15781180 Animals that rely on the heat from the environment , rather than of metabolism, to raise their body temperature are, in the strict sense, called (A) Ectothermic (B) poikilothermic (C) Homeothermic (D) Endothermic CORRECT ANSWER: A Watch Video Solution On Doubtnut App

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Page 1: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

NEETREVISIONSERIES

LIVINGWORLD

ReviseMostImportantQuestionstoCrackNEET2020

DownloadDoubtnutNow

Q-1-15781180

Animals that rely on the heat from the environment , rather than of

metabolism, to raise their body temperature are, in the strict sense,

called

(A)Ectothermic

(B)poikilothermic

(C)Homeothermic

(D)Endothermic

CORRECTANSWER:A

WatchVideoSolutionOnDoubtnutApp

Page 2: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

Q-2-23700688

Branch of biology dealing with the study of birds is

(A)Anthropology

(B)Herpetology

(C)Ornithology

(D)Onchology

CORRECTANSWER:C

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Q-3-30702143

Human genonme project lead to the development of

(A)Bionformatics

Page 3: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(B)Biotechnology

(C)Biomonitoring

(D)Biosystematics

CORRECTANSWER:A

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Q-4-24359504

Which one of the following aspects is a exlusive characteristic of

living things?

(A)Isolatedmetabolicreactionsoccurinvitro

(B)Increaseinmassfrominsideonly

(C)Perceptionofeventshappeningintheenvironment

andtheirmemory.

(D)Increaseinmassbyaccumulationofmaterialboth

Page 4: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

onsurfaceaswellasinternally.

CORRECTANSWER:C

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Q-5-15781260

study the four statements (A-D) given below and select the two

correct ones out of them

(A) Definition of biological soecies was given by Ernst mayr

(B) photoperiod does not affect reproduction in plants

Binomial nomenclature system was given by Ernst Whittaker

(D) In unicellular organisms, reproduction is synonymous with

growth

The two correct statments are

(A)(A)and(B)

(B)BandC

Page 5: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(C)CandD

(D)AandD

CORRECTANSWER:D

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Q-6-24359453

Which taxonomical aid has collection of preserved plant and

animals specimens for study and reference?

(A)Herbarium

(B)Key

(C)Museum

(D)Botanicalgarden

CORRECTANSWER:C

Page 6: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

SOLUTION:

Museumhavecollectionofpreservedplantandanimals

specimensforstudyandreference.

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Q-7-15781285

Who proposed the Binomial Nomenclature system

(A)Whittaker

(B)Mendel

(C)carlLinnaeus

(D)tippo

CORRECTANSWER:C

SOLUTION:

Page 7: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

TheBinomialsystem,ofnomenclature,wasexplanedby

carlLinnaresinhisbook'speciesplantarum'in1753.

Accordingtothisnameofanyorganism/plantconsistof

twowords.Firstrepresentsits'genura'andsecondits

'sepecies'

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Q-8-26855525

Which of the following are correctly matched with respect to their

taxonomic classification?

(A)Housefly,butterfly,tse-tsefly,silverfish-insecta

(B)Spinyanteater,seaurchin,seacucumber-

Echinodermata

(C)Flyingfish,cuttlefish,silverfish-pisces.

(D)Centipede,millipede,spider,scorpion-Insecta.

Page 8: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

CORRECTANSWER:A

SOLUTION:

Housefly,butterfly,tse-tsefly,silverfish-insecta.

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Q-9-15781272

Which one of the following is a taxonomical aid for identification

of plants and animals based on similarities and dissimilarities

(A)flora

(B)Keys

(C)Monographs

(D)Catalogues

�Manuals

Page 9: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

CORRECTANSWER:B

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Q-10-60039070

The label of a herbarium sheet does not carry information on

(A)dateofcollection

(B)nameofcollector

(C)localnames

(D)heightoftheplant

CORRECTANSWER:D

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Q-11-60039296

Single celled eukaryotes are included in

Page 10: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(A)Monera

(B)Protista

(C)Fungi

(D)Archaea

CORRECTANSWER:B

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Q-12-15781340

Consider the following statements with respect to haracteristic

features of the kingdom

of the above statements

AIn animalia the mode of nutrition is autotrophic

B In monera the nuclear membrane is present

C In protista the cell type is prokaryotic

Page 11: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

D In plantae the cell wall is present

(A)Aaloneiscorrect

(B)Baloneiscorrect

(C)Caloneiscorrect

(D)Daloneiscorrect

CORRECTANSWER:G

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Q-13-13465314

Which of the following statements regarding universal rules of

biological nomenclature is incorrect ?

(A)BiologicalnamesaregenerallyinLatinandwrittenin

italics.

Page 12: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(B)Thefirstwordinabiologicalnamerepresentsthe

genuswhilethesecondcomponentdenotesthespecies.

(C)Boththewordsinabiologicalname,when

handwritten,areseparatelyunderlined,orprintedinitalic

toindicatetheirLatinorgin.

(D)Thespecificepithetstartswithacapitalletterwhile

thegenericepithetstartseithasmallletter.Itcanbe

illustratedwiththeexampleofmangiferaIndica.

CORRECTANSWER:D

SOLUTION:

Thegenericstartswithacapitalletterwhilethespecific

epitherstartswithasmallletter.Itcanbeillustratedwith

theexampleofPantheratigris.

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Page 13: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

Q-14-13465395

Match colum I with colum II and select the correct option from the

codes given below.

(A)A-(i),B-(ii),C-(iii),D-(iv)

(B)A-(iii),B-(iv),C-(ii),D-(i)

(C)A-(iii),B-(iv),C-(i),D-(ii)

(D)A-(i),B-(ii),C-(iv),D-(iii)

CORRECTANSWER:B

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Q-15-15781287

ColumnI ColumnIIA. Botanicalgarden (i) Preservedplantspecimens

B. Zoologicalpark (ii) Preservedplantandanimalspecimens

C. Museum (iii) Livingplants

D. Herbarium (iv) Livingwildanimals

Page 14: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

binomial nomenclature system of Linnaeus means that every

organism has

(A)onenamegivenbytwoscientsts

(B)TwonamesoneLatinandotherofaaperson

(C)twonamesonescientificandotherpopular

(D)Onescientificnamewithgenericandotherwith

specificepithet

CORRECTANSWER:D

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Q-16-13465296

Which of the following organisms does not reproduce ?

(A)Mule

Page 15: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(B)Workerbee

(C)Infertilehumanfemale

(D)Allofthese

CORRECTANSWER:D

SOLUTION:

Amuleisahybridofmaledonkeyandfemalehorse.Itis

sexuallysterile(i.e.,unabletoreproduce)andhastobe

producedeverytimeanew.Honeybeesarecolonial,

socialpolymorphicinsects.Threetypesofindividuals

(cates)arefoundinthecolonyofhoneybees:(i)Queen

whichisfertilefemale.(ii)Droneswhicharemales.(iii)

Woekersaresterilefemalesandperformvariousduties

ofthecolony.Aninfertilehumanfemaleisunableto

producechildreninspiteofunprotectedfemaleisunable

toproducechildreninspiteofunprotectedsexual

Page 16: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

activities.

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Q-17-13465309

Linnaean system of classification was based on

(A)morphology

(B)ecology

(C)embryology

(D)cytology.

CORRECTANSWER:A

SOLUTION:

Linnaeusputforwardanartificialsystemofclassification

whichwasmainlybaseduponmorphologicalcharacters

Page 17: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

ofplants.

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Q-18-13465329

An English naturalist, who wrote the book 'Historia Generalis

Plantarum' and introduced the word 'species' was

(A)Theophrastus

(B)johnRay

(C)Cuvier

(D)Lamarck.

CORRECTANSWER:B

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Q-19-13465300

Page 18: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

A living organism is unexceptionally differentiated from a non-

living structure on the basis of

(A)reproduction

(B)growthandmovement

(C)interactionwithenvironment

(D)responsiveness.

CORRECTANSWER:D

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Q-20-13465399

Key' is a taxonomical aid used for the identification of organisms.

Each statement in key is called a _________.

(A)couplet

Page 19: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(B)lead

(C)both(a)and(b)

(D)noneofthese

CORRECTANSWER:B

SOLUTION:

Keyisataxononmicalaidusedforidentificationofplants

andanimalsbasedonthesimilaritiesanddissimilarities.

Thekeysarebasedoncontrastingcharactersgenerally

inapaircalledcoulpet.Itrepresentsthechoicemade

betweentwoopposite.options,whichresultsin

acceptanceofonlyoneandrejectionoftheother.Each

statementinthekeyiscalledalead.

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Q-21-40314990

Page 20: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

Father of lndian systemalic botany

(A)R.mishra

(B)WilliamRoxburgh

(C)Theophrastus

(D)Linnaeus

CORRECTANSWER:B

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Q-22-24359599

In hierarchical arrangement, the category which have greatest

diversity

(A)Kingdom

(B)Phylum

Page 21: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(C)Order

(D)Species

CORRECTANSWER:A

SOLUTION:

Inhierarchicalarrangement,thecategorywhichhave

greatestdiversityiskingdom.

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Q-23-34596936

Biological organisation starts with

(A)sub-microscopicmolecularlevel

(B)cellularlevel

(C)organismiclevel

Page 22: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(D)atomiclevel

CORRECTANSWER:A

SOLUTION:

(a)Biologicalorganisationstartswithsub-microscopic

molecularlevel,wherefourtypesofmolecules,i.e.

Carbohydrates,lipids,proteinsandnucleisacidsare

organisedintoorganisedintoorganellesofcell.

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Q-24-34596952

First life form on earth was a

(A)cyanobacteria

(B)chemoheterotrophs

(C)autotrophs

Page 23: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(D)photoautotrophs

CORRECTANSWER:B

SOLUTION:

(b)Firstlivingbeingswereformedintheenvironmentof

seahavingabundantorganicmolecules.Theyabsorbed

theorganicmaterialsforthesakeofnutritionandhence,

werechemoheterotrophs.

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Q-25-34596929

Nomenclature is governed by certain universal rules. Which one of

the following is contrary to the rules of nomenclature

(A)Thefirstwordinabiologicalnamerepresentsthe

genusnameandthesecondisspecificepithet

Page 24: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(B)ThenamesarewritteninLatinandareItalicised

(C)Whenwrittenbyhand,thenamesaretobe

underlined

(D)Biologicalnamescanbewritteninanylanguage

CORRECTANSWER:D

SOLUTION:

(d)Biologicalnamesoriginatefrionlatinlanguageand

areprintedinitalics.

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Q-26-34596940

Which of the following is an example of negative feedback loop in

humans

(A)Constrictionofskinbloodvesselsandcontractionof

Page 25: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

skeletalmuscleswhenitistoocold

(B)Secretionoftearsafterfallingofsandparticlesinto

theeye

(C)Salivationofmouthatthesightofdeliciousfood

(D)Secretionofsweatglandsandconstrictionofskin

bloodvesselswhenitistoohot

CORRECTANSWER:A

SOLUTION:

(a)Skinbloodvesselsconstrictandskeletalmuscles

contractduetothecoldisanexampleofnegative

feedbackmechanismofhomeostasis.

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Q-27-15781314

Page 26: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

The Non- nucleated unicellular organisms of whittaker's (1969)

Classification are included in the kingdom

(A)protista

(B)Monera

(C)Animalia

(D)Planate

CORRECTANSWER:B

SOLUTION:

moneracontainsthemostprimitivelivingformswhich

arebasicallyunicellularprokaryotes.

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Q-28-34596947

Page 27: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

There is not life on moon because there is no

(A)

(B)water

(C)light

(D)temperature

CORRECTANSWER:B

SOLUTION:

(b)Waterisanessentialconstituentofcytoplasmofall

livingorganisms.Ithelpsindistributionofsybstances

withintheorganism,eliminatioofwasteproducts,

maintenanceofbodytemperature,etc.Itisabsenton

themoon.Anaerobicorganismsthatcanliveinthe

absenceof .Lightandtemperaturearealready

knowntoexistonthemoon.

O2

O2

Page 28: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

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Q-29-24359563

Biological name of wheat is

(A)Triticumaestivum

(B)TriticumTriticale

(C)Triticumsativum

(D)Oryzasativa

CORRECTANSWER:A

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Q-30-34596962

Improvement of human race through improvement of human

environment is

Page 29: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(A)Euthenics

(B)Eugenics

(C)Euphenics

(D)Ethnology

CORRECTANSWER:B

SOLUTION:

(b)Eugenicsreferstoimprovementofhumanraceby

modifyingfertilityoremployingthehereditaryprinciples.

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Q-31-34596954

Relative Biological Effectiveness (RBE) usually refers to damage

caused by

Page 30: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(A)lowtemperature

(B)hightemperature

(C)encephalitis

(D)radiation

CORRECTANSWER:D

SOLUTION:

(d)RBE(RelativeBiologicalEffectiveness)isa

comparisonofthedoseoftheradiationbeingstudied

withthedoseofstandardradiationproducingthesame

effect.

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Q-32-34596942

Crabohydrates, the most abundant biomlecles on earth, are

Page 31: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

produced by

(A)allbacteria,fungiandalgae

(B)fungi,algaendgreenplantcells

(C)somebacteria,algaeandgreenplantcells

(D)viruses,fungiandbacteria

CORRECTANSWER:C

SOLUTION:

(c)Somephotosyntheticbacteriasuchas

Rhodopseudomonascanpreparecarbohydrates.But

duringthestypeoffoodsynthesis isnotevolved

because,inthiscasehydrogendonorisotherthan

.Algae(greenandblue-green)andallgreenplant

cellspreparetheirfood(carbohydrate)through

photosynthesis.Here,hydrogenionsaredonatedby

O2

H2O

Page 32: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

watermoleculesbytheprocessofphotolysisofwater,

i.e. isreleasedduringthestypeoffoodsynthesis.

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Q-33-13465375

Which of the following represents the correct sequence of various

taxonomic categories ?

(A)Class-Phylum-Tribe-Order-Family-Genus-Species

(B)Division-Class-Family-Tribe-Order-Genus-Species

(C)Division-Class-Order-Family-Tribe-Genus-Species

(D)Phylum-Order-Class-Tribe-Family-Genus-Specis

CORRECTANSWER:C

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O2

Page 33: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

Q-34-24359535

National Boltanical Research Institute (NBRI) is located at:

(A)Lucknow

(B)England,(Kew)

(C)Kolkata

(D)Howrah

CORRECTANSWER:A

SOLUTION:

NationalbotanicalresearchinstitutesituatedinLucknow.

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Q-35-13465304

Page 34: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

________ is the branch of science dealing with identification,

nomenclature and classification of organisms.

(A)Morphology

(B)Anatomy

(C)Ecology

(D)Taxonamy

CORRECTANSWER:D

SOLUTION:

Taxonomy(taxis-arrangement,nomos-law)isdefinedas

thesciencedealingwithidentification,nomenclatureand

classificationoforganisms.Thetermtaxonomywas

givinbybeCandolle(1813).

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Page 35: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

Q-36-15781339

Which one of the following organisms is scientifically correctly

named. Corretly printed according to the Intermational Rules, of

Nomenclature, and correctly described

(A)Muscadomestica-thecommonhouselizard,a

reptitle

(B)Plasmodiumfalciparum-Aprotozoanpathogen

causingthemostserioustypeofmalaria

(C)Felistigirs-TheIndiantiger,wellprotectedinGir

forests

(D)E.colifullnameEntamoebacoli,acommonly

occurringbacteriuminhumanintestine.

CORRECTANSWER:B

Page 36: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

SOLUTION:

plasmodiumfalcioarum-Aprotozoanpathogencauses

themostserioustypeofmalariathatisfalciparum

malaria.

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Q-37-13465392

Arboretum is a part of botanical gardens where

(A)bonsaiaremade

(B)beautificationisdone

(C)plamsaregrown

(D)bigtreesarecultivatedintheformofforests.

CORRECTANSWER:D

Page 37: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

SOLUTION:

Abotanicalgardenexclusilygrowingtreesandshurbsis

calledasarboretum.

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Q-38-24359523

Which of the following is correctly matched with no exception in

regard to plant classification

(A)Family-Poacae-ae

(B)Division-Pteridophyta-phyta

(C)Class-Bryopsida-sida

(D)Genus-Solanum-um

CORRECTANSWER:A

Page 38: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

SOLUTION:

Infamilysuffixis-aceae.

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Q-39-24359562

which of the following Is less general in characters as compared to

genus

(A)species

(B)Division

(C)Class

(D)Family

CORRECTANSWER:A

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Page 39: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

Q-40-13465324

Who wrote "Species Plantarum" and provided a basis for the

classification of plants ?

(A)CarolusLinnaeus

(B)CharlesDarwin

(C)RobertHooke

(D)Leeuwenhoek

CORRECTANSWER:A

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Q-41-24359525

The biologist who has been called the ''Darwin of the cantury'',

was

20th

Page 40: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(A)Lamarck

(B)Linnaeus

(C)E.Mayr

(D)Whittaker

CORRECTANSWER:C

SOLUTION:

E.MayrscalledDarwinof20thcentury.

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Q-42-24359595

Species living in same or overlapping geographical areas are called.

(A)Sympatricspecies

(B)Allopatricspecies

Page 41: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(C)Siblingspecies

(D)Polytypicspecies.

CORRECTANSWER:A

SOLUTION:

Specieslivinginsameoroverlappinggeogrpahical

areasarecalledsympatricspecies.

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Q-43-34596956

Pedology is science of

(A)earth

(B)soil

(C)diseases

Page 42: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

(D)pollution

CORRECTANSWER:B

SOLUTION:

(b)Pedologyisthestudyofsoilandsoilproperties.

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Q-44-24359601

Scientific names of animals are based on principles and criteria

agreed by

(A)IUCN

(B)ICZN

(C)ICBN

(D)ICVN

Page 43: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

CORRECTANSWER:B

SOLUTION:

Animaltaxonomistshaveevolvedinternationalcodeof

zoologicalnomenclature(ICZN).

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Q-45-34596958

Homeostasis is

(A)tendencytochangewithchangeinenvironment

(B)tendencytoresistchange

(C)disturbanceinregulatorycontrol

(D)plantsandanimalsextractsusedinhomeopathy

CORRECTANSWER:B

Page 44: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The

SOLUTION:

(b)Homeostasis(Gr.Homeos=similar,stasis=

standing)isthetendencyofmaintainingarelatively

stableinternalphysiologicalenvironmentinanorganism,

orsteady-stateequilibriuminapopulationor

ecosysterm.Itiscarriedoutbyregulatorymechanisms

whichcoordinateinternalfunctionssuchasproviding

nutrientstocellsandtransportingsubstances.

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Page 45: Animals that rely on the heat from the environment ... · Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The