2020
Specimen A– Clayey SoilSpecimen B – A solution of one part of egg albumen mixed with two parts of water in a test tube/beaker.Specimen C — Mushroom (freshly plucked).Specimen D — Giant land snail.Specimen E – Transverse…
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2020 WAEC SSCE Biology Past Questions
2020
Specimen A– Clayey SoilSpecimen B – A solution of one part of egg albumen mixed with two parts of water in a test tube/beaker.Specimen C — Mushroom (freshly plucked).Specimen D — Giant land snail.Specimen E – Transverse…
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2020
Specimen A– Clayey SoilSpecimen B – A solution of one part of egg albumen mixed with two parts of water in a test tube/beaker.Specimen C — Mushroom (freshly plucked).Specimen D — Giant land snail.Specimen E – Transverse…
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2020
(a) Explain briefly the following types of fertilization in animals; (i) external fertilization (ii) internal fertilization (b) Name two groups of animal each that exhibit the types of fertilization in (a)(c)(i) If the p…
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2020
(a) Explain briefly; (i) independent assortment of genes (ii) the reason blood group O in humans can only exist in homozygous form while blood groups A and B can exist both in homozygous and heterozygous forms.(b) Comple…
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2020
(a) Complete the table below;DiseaseCausative organismVectorControlCholera Trypanosome Female Anopheles mosquito Ringworm None (b) Explain briefly the biological basis of preserving foods using each of the followin…
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2020
(a)(i) What is a deficiency disease?(ii) Complete the table below by naming five nutrient deficiency diseases in humans and stating one remedy for each of the diseases.(b) Outline a chemical test for (i) Starch in a tube…
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2020
(a) Explain briefly how the human ear carries out its function of balancing.(b) (i) make a drawing 8 cm - 10 cm long of the structure of the human ear and label fully.(ii) Describe briefly the structure of the middle ear…
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2020
Which of the following statements best explains the reason why termites swarm at night?
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2020
Who proposed the theory of evolution by natural selection
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2020
Replication of DNA molecules is catalysed by an enzyme called
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2020
The diagram below is an illustrating of a cross between plants A and B of the same species. Study it to answer the question belowThe process that gave rise to the F1 generation is
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2020
The diagram below is an illustration of a cross between plants A and B of the same species. Study it and answer the question below;If the F1 generation are plants with high yield and resistance, the genotype of the F1 ge…
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2020
Which of the following diseases can be inherited?
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2020
Which of the following statements about chromosomes is correct?
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2020
Measurements of height and weight of students in a class show
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2020
Variation which exhibits a wide range from one extreme to the other is
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2020
A child that can receive blood donation from anybody belongs to the blood group
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2020
Which of the following substances is not a conservable natural resource?
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2020
A company was prohibited from producing bags made from natural leopard skin. This is an attempt to conserve
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