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The following are associated with succession EXCEPT
Achanges in species composition
Bcompetition among organisms
Cdecrease in number of organisms
Ddiversity of organisms
Ehabitat change
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Question 22
neco2008
The following are involved in reflex action EXCEPT
Abrain cells
Bintermediate neuron
Cmotor neuron
Dreceptor
Esensory neuron
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Question 23
neco2008
The following are kidney diseases EXCEPT
Adiuresis
BHepatitis
Ckidney stones
Dnephritis
Eoedema.
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Question 24
neco2008
The dental formula i 3/3, c 1/1, pm 4/4, m 2/3 represents that of a
ACat
BDog
CMan
DRabbit
ESheep
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Question 25
neco2008
Which of the following is an anabolic process
AExcretion
BFermentation
CPhotolysis
DPhotosynthesis
ETransportation
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Question 26
waec2008
The order of evolution trend in plants is
ABryophyta, Thallophyta, Pteridoiphyta and Spermatophyta
BThallophyta Bryophyta Pteridoiphyta and Spermatophyta
CSpermatophyta, pteridophyta, Bryophyta and Thallophyta
DBryophyta, Pteridophyta, Spermatophyta and Thallophyta
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Question 27
waec2008
The accepted concepts for the theory of Natural Selection does not include
Atendency for organisms to over produce
Bstruggle for existence
Csurvival of the fittest
Duse and disuse of body parts
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Question 28
waec2008
Which of the following occurrences cannot be taken as a direct observation of natural Selection in recent times?
AIndustrial melanism in moths
BSelective breeding in cattle
CInsecticide resistance of some mosquitoes
DDevelopment of long necks in giraffes
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Question 29
waec2008
Which of the following statements is not true of the worker termite? They
ABuild and repair nest
Bproduce enzymes to digest cellulose
Csearch for food to feed the colony
Dlook after the nymph
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Question 30
waec2008
If red is dominant to white and homozygous red pea-plants are crossed with homozygous white pea-plants, the first filial generation will have
Ared flowers, 2 white flowers
B4 red flowers
Cwhite flowers
D4 pink flowers
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Question 31
waec2008
The resemblance of a palatable insect to a poisonous insect is an example of
Aa chemical deterrent to a predator
Ban escape from the predator camouflage
Can escape from the predator by mimicry
Da defense against the predator by warming coloration
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Question 32
waec2008
Which of the following diseases is commonly observed in human males and is sex-linked?
ABeriberi
BDown’s syndrome
CSickle-cell anaemia
Dcolour blindness
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Question 33
waec2008
What of the following occurrences is not a feature of meiosis?
AFormation of four haploid cells
BTwo successive nuclear cell division
CPairing of homologous chromosomes at prophase
DFormation of two diploid cell
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Question 34
waec2008
What does the chemical composition of the genetic material of all living organisms consist of?
ADeoxyribonucleic acid
BAdenosine diphosphate
CAdenosine triphosphate
Dfollicle stimulating hormone,
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Question 35
waec2008
The effective cells involved in sickle-cell anaemia disease are
Aphagocytes
Blymphocytes
Cerythrocytes
Dthrombocytes
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Question 36
waec2008
The sudden change in a gene structure or chromosome number in an organism likely to cause an inheritable change in the phenotype is known as
Amigration
Bmutation
Cmitosis
Dmeiosis
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Question 37
waec2008
The observable characteristics of an individual usually resulting from the interaction between the gene composition and the environment is referred to as
Aallele
Bgenotype
Cphenotype
Dchromosome
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Question 38
waec2008
Which of the following human traits in a class of school children may give an approximate normal distribution curve when the variation is plotted?
ABlood groups
BEar shapes
CSex distribution
DHeights
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Question 39
waec2008
Which of the following characters is not an example of discontinuous variation?
ASkin color
BFingerprint
CAbility to roll tongue
DSex type
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Question 40
waec2008
Which of the following statements about phenylthiocarbamide (PTC) is not correct?
