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.
Which of the following statements is true about the ABO blood group system?
AAntigens are located on the surface of white blood cells
BAntibodies are located in the blood plasma
CAntibodies are located on the surface of red blood cells
DAntigens are located in the blood plasma
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Question 773
waec2012
The following pairs of traits are examples of continuous and discontinuous variations respectively except
Aeye Colour and body weight,
Bheight and blood group
Cskin colour and fingerprints
Dbodyweight and tongue rolling.
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Question 774
waec2012
The primary cause of species endangerment is
Adisappearing habitats
Bincrease in temperatures
Cacid rain
Dexposure to hazardous wastes
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Question 775
waec2012
Which of the following factors would be least likely to act as a density dependent limiting factor in a population of
mice?
ABuildup of waste products
BPredation
CParasitism
DUnfavourable climate
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Question 776
waec2012
The detection of vibro cholera in public drinking water is a sign of
Aclean water
Boutbreak of disease
Cwater pollution.
Ddecayed organisms in the water
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Question 777
waec2012
The use of water closet and septic tanks is preferred to the use of
bucket and pit latrines because
Ait is cost effective
Bcontaminated faeces are completely kept away from flies
Cthe water for flushing contains chlorine which kills the germs
DIt prevents flies from breeding
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Question 778
waec2012
Which of the following factors exerts a major effect on the distribution of living organisms in the habitat?
ASalt
BpH
CLight
DRainfall
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Question 779
waec2012
In which of the zones can very few organisms be found
AI
BII
CIII
DIV
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Question 780
waec2012
Plants with breathing roots are characteristic features of vegetation in
Atropical grassland
Btemperate grassland
Csaltwater swamp
DTropical rain forest
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Question 781
waec2012
How many food chains are in the diagram?
AThree
BFour
CFive
DSix
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Question 782
waec2012
The best title for the above diagram is
Aterrestrial food web
Bterrestrial food chain
Caquatic food web
Daquatic food chain
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Question 783
waec2012
Which of the following instruments would be most appropriate in comparing the air pressure at different places in the habitat?
AHygrometer
BBarometer
CPhotometer
DAir pressure disc
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Question 784
waec2012
The following are abiotic components of the ecosystem except
Abacteria
Btopography
Cwater
Dwind
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Question 785
waec2012
The area around the earth where life activities go on is referred to as
Abiosphere
Blithosphere
Chabitat
Decosystem
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Question 786
waec2012
A space containing a group of interactive organisms
is called
Acommunity
Bhabitat
Cecosystem
Dpopulation
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Question 787
waec2012
Which of the following food substances will have
little or no calorific value?
AProteins
BCarbohydrates
CLipids
DWater
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Question 788
waec2012
The appropriate food to be given to the child in the picture above is?
Abeans
Bgarri
Cbread
Davocado pear
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Question 789
waec2012
Which of the following digestive enzymes would be greatly affected if the liver fails to
produce bile?
AAmylase
BCellulase
CLipase
Drotease
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Question 790
waec2012
The diagram above is an illustration of an experimental setup to test the action of
yeast. What test would be used to confirm the nature of the gas given off at?
