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The following functions are associated with the liver except
Aregulation of blood sugar
Bproduction of heat
Cproduction of fibrinogen
Dproduction of vitamin
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Question 43
waec2001
Which of the following processes occurs when the body temperature of a mammal rises above the normal?
I The arterioles in the skin dilate. II Sweat production is reduced. III The erector muscles contract.
AI only
BII only
CI and III only
DII and III only
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Question 44
waec2001
Which of the following is an excretory product of Amoeba?
AUrea
BAmmonia
CUric acid
DAmino acid
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Question 45
waec2001
The effect of the contraction of the muscles of the diaphram is that
Ahe volume of the thoracic cavity increases.
Bmore carbon dioxide is expelled through the nostrils
Cthe rib cage is drawn inwards
Dthe intercostal muscle becomes relaxed
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Question 46
waec2001
Which of the following pairs of structures does not perform similar functions?
ALungs and spiracles
BRoot hair and mammalian hair
CFeathers and scales
DContractile vacuole and kidney
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Question 47
waec2001
Which of the following is not a product of fermentation of glucose?
AEnergy
BAlcohol
CLactic acid
DCarbon dioxide
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Question 48
waec2001
Which part of the gill of fish is involved in gaseous exchange?
AGill slits
BGill bars
CGill covers
DGill filaments
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Question 49
waec2001
The process by which plants convey food material to different parts of the body is called
Anutrition
Babsorption
Ccirculation
Dtranslocation
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Question 50
waec2001
Which of the following is not a constituent of blood plasma?
AProteins
BMineral salts
CWater
DPlatelets
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Question 51
waec2001
Which of the following statements is true about blood groupings?
AGroup AB can donate blood to all other groups
BGroup 0 are universal recipients.
CGroup A has A antigen in its plasma
DGroup O has no antigen.
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Question 52
waec2001
Which of the following groups contains a non-supporting structure in animals?
ACartilage, bone and pseudopodia
BPellicle, chitin and bone
CHumerus, ribs and cartilage
DFemur, pellicle and chitin
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Question 53
waec2001
The advantages of sexual reproduction include the following except
At allows the formation of new species
Bit allows production of desirable traits
Cit permits variation of individuals
Dit provides means for the variation of chromosome number from generation to generation.
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Question 54
waec2001
Display is a phenomenon which occurs when an animal is
Aready for mating
Bfighting to defend itself
Capproaching puberty
Dchasing away an intruder
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Question 55
waec2001
Which bf the following structures are visible in the cell of a plant during mitosis?
ACentrioles, chromatids and nucleolus
BHomologous chromosomes, nuclear membrane and spindle fibres
Ccell wall, centrioles and chromatids
DChromosomes, nuclear membrane and centromere
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Question 56
waec2001
A red blood cell haemolyses when placed in a hypotonic solution because
Ait contains haemoglobin
Bthe cytoplasm is less dense
Cthe cell lacks a wall
Dits pigment has a high affinity for water
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Question 57
waec2001
Which of the following phenomena affects plants growth in an alkaline soil?
AExcessive plasmolysis
BExcessive transpiration
CExcessive sunlight
DPoor drainage
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Question 58
waec2001
A major reason why the red blood cells can survive in the blood is that the
Ablood plasma and the red blood cells are isotonic
Bred blood cells are hypotonic to the plasma
Cthe red blood cells are hypertonic to the blood plasma
Dthe red blood cells receive digested nutrients
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Question 59
waec2001
A piece of yam weighing 1.0 gm was put into some salt solution. After 3 hours, it was removed and weighed.
The recorded weight was 1.2gms. This simple experiment demonstrates that the
Asalt solution is more concentrated than the cell sap of the yam.
Bcell sap of the yam is more concentrated than the salt - solution
Csalt solution has the same concentration as the cell sap of the yam.
Dthe yam lost some water molecules to the salt solution.
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Question 60
waec2001
Carbohydrates are stored in the animal cell in the form of
