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.

108 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10
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Past Questions

108 questions
Question 1 of 20 108 total questions
Question 31
jamb 1997

Long neck in giraffe is used to illustrate the theory of

Ause and disuse
Borigin of species
Corigin of life
Dnatural selection
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Question 32
jamb 1997
Fossil records found in sedimentary rocks offer some explanation for the theory of evolution because
Athe deposits have remains of organisms characteristic of when they were formed
Bdifferent strata have remains of organisms of the same kind
Conly organisms with strong parts are fossilized
Dmost animal and plant fossils bear little resemblance to present day living specimens
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Question 33
jamb 1997
What combination of character should a prey develop to survive the environment of its predator?
ACamouflag, well developed limbs and effective vision
BShowy colour, big body and well developed limbs
CCamouflage, big body and effective vision
DShowy colour, well developed muscles and an acute sense of smell
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Question 34
jamb 1997

Which of the following characters is NOT sex-linked?

AAlbinism
BBaldness
CHaemophilia
DColour blindness
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Question 35
jamb 1997

The homozygous condition HbsHbsresults in sickle cell anaemia whereas HbAHbs has the sickling trait. What is the probability that a couple with the sickling trait will give birth to one normal child?

A1/2
B1/4
C1/8
Dnone
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Question 36
jamb 1997

One reason for the success of Mendel's work is that he

Awas the first to carry out research work on modern genetics
Bintroduced quantitative and qualitative elements into his work
Cselected two characteristics only at a time for study
Ddrew up his laws of inheritance based on his knowledge of chromosomes
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Question 37
jamb 1997
During binary fission in lower organisms, the nucleus is known to undergo
Amitosis
Bmeiosis
Cfragmentation
Dmutation
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Question 38
jamb 1997
One of the most effective ways of controlling guinea worm is by
Atreating the disease
Bpublic enlightenment campaigns
Caccelerating rural developmnet
Dprovision of portable drinking water
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Question 39
jamb 1997
Which is the most important pollutant of the marine environment in Nigeria?
AInsecticides
BSewage
COil
DInorganic fertilizers
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Question 40
jamb 1997
In a soil sample, the relative amouunts of the different soil particles can best be determined by the process of
Afiltration
Bcentrifugation
Cprecipitation
Dsedimentation
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Question 41
jamb 1997
After a heavy rainfall and the formation of a large pond, the most likely sequence of changes in the vegetation of the pond is
AEuglena → water lily → Spirogyra → grass
Bwater lily → Spirogyra →grass → Euglena
CSpirogyra → Euglena → grass → water lily
DEuglena → Spirogyra → water lily → grass
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Question 42
jamb 1997
The Southern Guinea Savanna differs from the Northern Guinea Savanna in that it has
Alower rainfall and shorter grasses
Bless grasses and scattered trees
Cmore rainfall and taller grasses
Dless arboreal and burrowing animals
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Question 43
jamb 1997

Adaptive features of plants to desert conditions include?

Athick barks, succulent stems and sunken stomata
Bthin barks, succulent stems and sunken stomata
Cthin barks, air floats on stems and sunken stomata
Dair spaces in tissues, adventitious roots and thick barks
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Question 44
jamb 1997
Toads and lizards in an ecosystem depend on a limited quantity of food. This is an example of
Aparasitism
Bintraspecific competition
Cpredation
Dinterspecific competition
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Question 45
jamb 1997
Which organism in the food-web illustrated above is an omnivore?
AWeevils
BRat
CHawk
DPrayer mantis
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Question 46
jamb 1997

The speed of wind can be measured with an instrument called

Ahygrometer
Bsecchi disc
Canemometer
Dwind vane
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Question 47
jamb 1997
The ability of the eye to focus on both near and distant objects is termed
Aimage formation
Brefraction
Chypermetropia
DAccomodation
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Question 48
jamb 1997

The part of the brain that regulates most biological cycles in humans is

Aolfactory lobe
Boptic lobe
Cmedulla oblongata
Dpineal body
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Question 49
jamb 1997
The substance that is responsible for optical dominance in plants is known as
Agibberellin
Btannin
Cauxin
Dkinin
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Question 50
jamb 1997
coconut and oil palm fruits can be grouped as
Aberry
Blegume
Ccapsule
Ddrupe
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