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Biology Past Questions

Study and practice Biology past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

5,032 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10
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Past Questions

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Question 1 of 20 5,032 total questions
Question 241
waec 2022

Diagram J is a protease while diagrams K,L,M, and N are food substances, study them and answer this question.

Protease J would react with the particular illustrated substance because enzymes? 

Ak
BL
CM
DN
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Question 242
waec 2022

Which of the following statements about sex linked traits is not correct?

Amale inherit sex linked traits from thier fathers
Bsex linked traits are more common in males
Cfemales can be carriers beacuse they can be heterozygous for the trait
Dmales are never carriers since they only recieve one sex chromosome
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Question 243
waec 2022

Which of the following statements best describes a test cross?

Ato determine the genotype of an individual whose phenotype is to be known
Bto determine the phenotype of an individual whose genotype is known
Cbetween the progeny of parents to ascertain external expressions
Dbetween two homozygous recessive individuals to confirm the genotypes
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Question 244
waec 2022

Two tall plants were crossed and all the F1 plants were tall. when the F1 plants were selfed, some of the F2 plants were tall while others were short what are the possible genotypes of the original plants ? 

ATt and tt
BTT and TT
Ctt and tt
DTT and Tt
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Question 245
waec 2022

Individuals belonging to the blood group O are universal donors because ?

Aantigens are absent in thier blood cells
Bmembers of the group consitutute the highest number of humans
Cthere are no of antibodies in thier blood plasma
Dthe antigens in thier blood cells are easily destroyed
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Question 246
waec 2022

Which of the followig traits in humans is an example of physiological variation?

Askin colour
Bfingerprint
Ctongue rolling
Dheight
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Question 247
waec 2022

An accident victim was successfully transfused with blood from the father whose blood, group is AB. The blood group of the accident victim is

AB
BO
CAB
DA
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Question 248
waec 2022

The use of a lighter instead of matchsticks is a way of conserving 

Apetroleum
Bforest
Cwater
Dwildlife
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Question 249
waec 2022

The burning of farmlands ahould be discouraged because?

Adestroys organic components of the soil
Bincreases population of wild animals
Cincreases dormancy period of some seeds
Ddestroys some plant seeds
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Question 250
waec 2022

The conservation of natural resources is enhanced by the following practices except

Acontrolling farm activities
Bprotecting endangered species
Cpoaching in game reserves
Destablishing parks and gardens
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Question 251
waec 2022

The biological association that contributes directly to succession in a community is

Acompetition
Bpredation
Cparasitism
Dcommensialism
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Question 252
waec 2022

which of the following features is not an adaptation?

ABreathing roots for entry air
Bflowers are raised above water to attract pollinators
Cspongy tissues containing gases for boyancy
Dhairy structures on the leaves to reduce water loss
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Question 253
waec 2022

Study the food chain illustrated below and use it to answer this question.

J-K-L-M-N

The position occupied by each of organisms  J K L M N in the food chain is known as the 

Aenergy level
Btrophic level
Cfood web
Dpyramid of numbers
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Question 254
waec 2022

Study the food chain illustrated below and use it to answer this question.

J →K →L →M →N

Which of the following statements about organism L is correct?

 

Afeeds on organism
Bis a primary consumer
Cis the producer
Dis a secondary consumer
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Question 255
waec 2022

Study the food chain illustrated below and use it to answer this question.

J-K-L-M-N

Organism J is normally sustained by energy from?

AGreen plants
Bcarbohydrates
Corganism
Dsunlight
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Question 256
waec 2022

which of the follwing pyramids is not used in ecology? pyramid of 

Aenergy
Bnumbers
Cbiomass
Dorgsnisms
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Question 257
waec 2022

The diagram below is an illustration of an experiment on sedimentation of soil, use it to answer this question.

The part labelled IV is 

Asilt
Bsand
Chumus
Dclay
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Question 258
waec 2022

The diagram below is an illustration of an experiment on sedimentation of soil, use it to answer this question.

The organic component of the soil is labelled

AI
BII
CIII
DIV
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Question 259
waec 2022

A group of organisms of the same species living in a particular place is known as 

Acolony
Becosystem
CNiche
Dpopulation
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Question 260
waec 2022

which of the following practices will not maintain soil fertility?

Apreventing soil erosion
Bbush fallowing
Ctendency of becoming waterlogged
Dporosity and low water retention ability
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