Biology Past Questions

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

5,032 questions
Question 1 of 20 5,032 total questions
Question 451
waec 2018

In an ecosystem, the least efficient energy transfer link is from the

Asecondary consumers to decomposers
Bsun to producers
Cprimary consumers to secondary consumers
Dproducer to primary consumers
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Question 452
waec 2018

Which of the following instruments is used to determine the turbidity of water?

Ahygrometer
Bhydrometer
Csecchi disc
Drain gauge
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Question 453
waec 2018

The diagram above is an illustration of organisms in an air-tight aquarium.The most important factor needed by the organisms is

Alight energy
Blow humidity
Coxygen
Dnitrate
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Question 454
waec 2018

The most important factor(s) that influence(s) the ecological niche of an organism is/ are the

Awater, light and predator-prey relationship
Bfood and water availability
Cphysical environment
Dcompetition for food and space
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Question 455
waec 2018

Which of the following statements would be a correct observation at the end of the experiment? Water moves

Ahighest in sandy soil
Blowest in loamy soil
Cto the same level in all soil types
Dhighest in clayey soil
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Question 456
waec 2018

The diagram above is an illustration of an experimental set-up to demonstrate a property of soil. The property of soil demonstrated is

Aparticle size
Bcapillarity
Ccolour
Dtexture
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Question 457
waec 2018

Which of the following dental formulae represents the dentition in rabbits?

A\(I\frac{2}{1}\) \(C\frac{0}{0}\) \(P\frac{3}{2}\) \(M\frac{3}{3}\)
B\(I\frac{2}{2}\) \(C\frac{1}{1}\) \(P\frac{2}{2}\) \(M\frac{3}{3}\)
C\(I\frac{1}{2}\) \(C\frac{0}{0}\) \(P\frac{2}{3}\) \(M\frac{3}{3}\)
D\(I\frac{2}{1}\) \(C\frac{0}{1}\) \(P\frac{3}{2}\) \(M\frac{3}{3}\)
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Question 458
waec 2018

The duodenum of a person was surgically removed. Which of the following substances would have their digestion affected?

Astarch and protein only
Bstarch and lipids
Cstarch, peptones and maltose
Dstarch, protein and lipids
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Question 459
waec 2018

The ascent of water in tall trees is mainly due to 

Aadhesive forces
Btranspiration pull
Croot pressure
Dcohesive forces
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Question 460
waec 2018

By what process is starch converted into maltose?

AHydrolysis
BCondensation
CTranslocation
DPhotosynthesis
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Question 461
waec 2018

One major difference between plant and animals nutrition is the ability of plants to synthesize

AFood for plants and animals
BWater for plants
CWater for animals
DFood for plants only
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Question 462
waec 2018

The source of energy required by plants during food production is

APhotosynthesis
BChlorophyll
CSunlight
DMicroorganisms
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Question 463
waec 2018

In the diagram above, the larva is also known as

ANymph
BCaterpillar
CMaggot
DChrysalis
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Question 464
waec 2018

The diagram above is an illustration of the life cycle of an insect. The adult fly in this cycle is called

AHousefly
BButterfly
CCockroach
DMosquito
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Question 465
waec 2018

The structures for gaseous exchange in breathing roots are

Astomata
Blenticels
Ccuticle
Dmitochondria
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Question 466
waec 2018

Which of the following practices may lead to infection of the eye? Use of

Acontact lenses
Bconvex lenses
Cbiconcave lenses
Dconcave lenses
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Question 467
waec 2018

Which of the following statements about the response of neurones to stimulus is correct?

ANeurons respond to stimulus of any strength
BNeurons respond to all stimuli applied in rapid succession
CNeurons respond more rapidly during the absolute refraction period
DIntensity of stimulus must reach a threshold value before the neurons can be excited
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Question 468
waec 2018

The thyroid gland is found at the base of the

AMidbrain
BKidney
CNeck
DLiver
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Question 469
waec 2018

Ultrafiltration in the kidney takes place in the

ARenal vein
BMedulla
CLoop of Henle
DBowman's Capsule
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Question 470
waec 2018

An example of homeostasis in living organisms is

Acooling effect resulting from evaporation of water from the body surface
Broot hairs of a plant growing towards the source of light
Cchanging of the body colour of chameleon to match the colour of the foliage on which it is resting
Dthe release of phosphorus into the phloem of a plant growing in a phosphorus-deficient soil
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