1991
Fibrinogen and prothrombin play important roles in the
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1991 JAMB UTME Biology Past Questions
1991
The process by which water moves from X to Y through the semi-permeable membrane is called
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1991
After 30 minutes, the level of sugar solution in the above figure will
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1991
Which of the following can bring about the greatest increase in the rate of transpiration?
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1991
A collection of achenes formed from several carpels of a flower is
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1991
The function of the epididymis in mammals is the
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1991
Which of the following vertebrae lacks a centrum?
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1991
The movement of the whole organism to an external stimulus is termed
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1991
Which of the following is a plant excretory product?
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1991
The exchange of genes between homologous chromosomes is called
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1991
The greatest contribution to genetic studies was made by
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1991
A dwarf plant can be stimulated to grow to normal height by the application of
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1991
Epigeal germination can be found in
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1991
Vegetation propagation is described as asexual reproduction because
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1991
The above diagram represents a competitive interaction between organism in communities I and II. Which of the following statements is CORRECT?
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1991
Organisms in an ecosystem are usually grouped according to their trophic level as
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1991
The most important factors which influence an organism's way of life in its habitat are
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1991
Which of the following characters is NOT sex-linked?
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1991
When two heterozygotes mate, the dominant trait will appear in
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1991
Sources of air pollutants are
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