Biology past questions: WAEC SSCE 2024

49 objective questions, with answers. Free to read and practise.

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49 questions, one at a time, marked as you go or at the end. No account needed.

1.
A farmer planted many seeds on a small piece of land. The plants that germinated are as shown above. Which of the following effects would not be observed among the population of the plants?
1. A.Rise in disease condition
2. B.Death
3. C.Mutualistic relationship
4. D.Competition
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Answer: C Mutualistic relationship
2.
A plant with short, vertical underground stem is a
1. A.bulb
2. B.corm
3. C.rhizome
4. D.tuber
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Answer: B corm
3.
A woman with blood group A gives birth to a child with blood group O. Which of the following blood groups cannot belong to the father?
1. A.B
2. B.A
3. C.AB
4. D.O
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Answer: C AB
4.
An environmental problem caused by Sulphur (IV) oxide is
1. A.acid rain
2. B.deforestation
3. C.global warming
4. D.Erosion
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Answer: A acid rain
5.
An individual found a strange bird that is tagged as an endangered specie. What should the individual do?
1. A.Kill it
2. B.Take it to an aquatic environment
3. C.Return it to its natural habitat
4. D.Sell it at a very high price
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Answer: C Return it to its natural habitat
6.
Discouraging the use of poison to kill fish in a large water body is a way of
1. A.impoverishing the people
2. B.conserving the fish species
3. C.allowing the fittest organism to survive
4. D.making the fish adapt to their environment
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Answer: B conserving the fish species
7.
Filtrates in the Bowman's capsule contain vitamins because
1. A.they have low molecular weight.
2. B.most of them are fat soluble.
3. C.they cannot be reabsorbed into the blood.
4. D.little amount is required by the blood.
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Answer: A they have low molecular weight.
8.
Grasses → Grasshoppers → Lizards → Hawks If the individual species of organisms in the food chain are counted and arranged as a pyramid, the result would be a pyramid of
1. A.numbers
2. B.energy
3. C.biomass
4. D.biomes
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Answer: A numbers
9.
Habitats of the organisms respectively are
1. A.river and stream
2. B.rainforest and stream
3. C.pond and leaf litter
4. D.garden and desert
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Answer: D garden and desert
10.
If a germinating seed is attached horizontally to a revolving klinostat, what would be the effect on the seedling after three days? The
1. A.plumule will curve vertically upward while the radicle will not show any curvature
2. B.radicle will curve towards the ground while the plumule will not show any curvature
3. C.plumule and radicle will not show any curvature
4. D.plumule will curve vertically upwards while the radicle will curve towards the ground
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Answer: C plumule and radicle will not show any curvature
11.
In a test, a student paired some scientists with their famous work as shown below. Use it to answer questions 49 and 50. Scientist Famous work I. Charles Darwin → Preservation of some food with heat II. Gregor Mendel → Natural selection III. Jean Baptiste Lamarck → Inheritance of acquired characteristics IV. Louis Pasteur → Independent assortment of genes. The Scientists that are not correctly paired with their famous work are
1. A.I and II only
2. B.II and III only
3. C.I, II and IV
4. D.II, III and IV
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Answer: C I, II and IV
12.
Mutation leads to evolution because it
1. A.kills all organisms where it has occurred
2. B.gives rise to offspring having same characteristics as the parents
3. C.does not confer adaptability to the offspring
4. D.gives rise to new individuals that differ from their parents
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Answer: D gives rise to new individuals that differ from their parents
13.
Sunlight is the major source of
1. A.Vitamin D
2. B.vitamin C
3. C.vitamin B
4. D.vitamin A
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Answer: A Vitamin D
14.
The bar chart above shows the data of sources of energy used for cooking in a community. Study it and answer questions 37 and 38. The source of energy that is mostly used in the community is
1. A.solar
2. B.Kerosene
3. C.coal
4. D.wind
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Answer: B Kerosene
15.
The bursting of a red blood cell placed in a hypotonic solution is called
1. A.crenation
2. B.haemolysis
3. C.plasmolysis
4. D.cytolysis
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Answer: B haemolysis
16.
The condition necessary for reproduction to occur between plants P and Q after pollination is that plants P and Q should be
1. A.of the same species
2. B.brightly coloured
3. C.well scented
4. D.of different species
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Answer: A of the same species
17.
The diagram above illustrates a dry dehiscent fruit. Use it to answer questions 19 and 20. The agent of dispersal of the fruit is
1. A.animal
2. B.explosive mechanism
3. C.water
4. D.wind
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Answer: D wind
18.
The diagram above is an illustration of a reproductive process in an organism. Study it and answer ques tions 4 and 5. The type of reproduction illustrated is
1. A.budding
2. B.binary fission
3. C.grafting
4. D.vegetative propagation
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Answer: B binary fission
19.
The diagram above is an illustration of genetic cross between two parents. The parental gametes I, II, III and IV gave rise to the offspring below. Study it and answer questions 43 and 44. Gametes I, II, III and IV, respectively are
1. A.T,T,T and t
2. B.T, t, t, and t
3. C.T, T, t and t
4. D.T, t, T and t
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Answer: B T, t, t, and t
20.
The diagram above is an illustration of sense organ in humans. Study it and answer questions 15 and 16. The part that protects the organ is labelled
1. A.I
2. B.II
3. C.III
4. D.IV
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Answer: B II
21.
The diagram above is an illustration of two plants P and Q. Arrows I, II and III illustrate the transfer of pollen grains among flowers of plants P and Q. Studly it and answer questions 17 and 18. The types of pollination illustrated as I,Il and III, respectively are
1. A.cross, self and cross
2. B.self, self and cross
3. C.self, cross and self
4. D.self, cross and cross
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Answer: B self, self and cross
22.
The diagrams above are the illustrations of organisms from different habitat. Study them and answer questions 32 and 33. The structures labelled I are for
1. A.Camouflage
2. B.Chemical offence
3. C.Physical defence
4. D.Mimicry
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Answer: C Physical defence
23.
The element required for chlorophyll formation in plants is
1. A.Iron
2. B.Calcium
3. C.Phosphorus
4. D.Sulphur
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Answer: A Iron
24.
The function of the root hair in plants is to
1. A.absorb soil water by the process of osmosis.
2. B.excrete water and mineral salts by simple diffusion.
3. C.purify the soil for the plant.
4. D.translocate manufactured food.
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Answer: A absorb soil water by the process of osmosis.
25.
The illustrated organism is capable of reproducing by
1. A.sexual means only
2. B.asexual means only
3. C.vegetative propagation only
4. D.sexual and asexual means
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Answer: D sexual and asexual means
26.
The illustration below is a food chain. Study it and answer questions 29 and 30. Grasses → Grasshoppers → Lizards → Hawks Which of the following statements is not correct about the food chain? The number of
1. A.grasses eaten by grasshoppers is greater than the number of grasshoppers.
2. B.grasses eaten by grasshoppers is fewer than the number of grasshoppers.
3. C.grasshoppers eaten by lizards is greater than the number of lizards.
4. D.lizards eaten by hawks is greater than the number of hawks.
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Answer: B grasses eaten by grasshoppers is fewer than the number of grasshoppers.
27.
The lumbar vertebra differs from the thoracic vertebra because it possesses a
1. A.longer neural spine.
2. B.wider neural canal.
3. C.thicker centrum.
4. D.shorter transverse process.
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Answer: C thicker centrum.
28.
The male and female gametes which bear genes for inheritance in plants are located in the
1. A.anthers and petals
2. B.sepals and petals
3. C.stamens and pistils
4. D.stamens and petals
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Answer: C stamens and pistils
29.
The Parachute-like tuft of hairs developed from the
1. A.pedicel
2. B.petals
3. C.receptacle
4. D.sepals
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Answer: D sepals
30.
The part labelled III is the
1. A.iris
2. B.pupil
3. C.sclera
4. D.cornea
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Answer: B pupil
31.
The pathway through which nutrient are replenished and circulated in an ecosystem is called a
1. A.cycle
2. B.pyramid of energy
3. C.pyramid of numbers
4. D.Food chain
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Answer: A cycle
32.
The phenomenon by which a farmland that is left to fallow for several years develops into a forest is called
1. A.Succession
2. B.afforestation
3. C.population
4. D.colonization
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Answer: A Succession
33.
The physical appearance of an organism is described as its
1. A.phenotype
2. B.genotype
3. C.allele
4. D.chromosome
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Answer: A phenotype
34.
The process of food digestion in mammals would
1. A.make energy immediately available to the body
2. B.promote growth and repair of tissues
3. C.provide sufficient food materials within the body
4. D.render food substances soluble and absorbable
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Answer: D render food substances soluble and absorbable
35.
The rate of photosynthesis decreases in a wilted herbaceous plant because the
1. A.enzymes in the leaf were denatured
2. B.chlorophyll in the leaves was not broken down
3. C.amount of light reaching the plant was reduced
4. D.amount of carbon dioxide entering the leaf decrease
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Answer: D amount of carbon dioxide entering the leaf decrease
36.
The structure in the cell that controls the movement of substances in and out of the cell is the
1. A.cytoplasmic membrane
2. B.nuclear membrane
3. C.protoplasm
4. D.endoplasm
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Answer: A cytoplasmic membrane
37.
The structures that contain grey matter and white matter are found in the
1. A.reproductive system.
2. B.nervous system.
3. C.respiratory system.
4. D.digestive system.
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Answer: B nervous system.
38.
The two sources of energy that would mostly lead to pollution in the community are
1. A.solar and kerosene
2. B.coal and wind
3. C.kerosene and coal
4. D.solar and wind
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Answer: C kerosene and coal
39.
Which of the following blood vessels carries oxygenated blood into the heart?
1. A.Pulmonary artery
2. B.Anterior vena cava
3. C.Pulmonary vein
4. D.Posterior vena cava
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Answer: C Pulmonary vein
40.
Which of the following events does not occur in the light reaction stage of photosynthesis?
1. A.Chlorophyll absorbs sunlight
2. B.Carbon (IV) oxide combines with hydrogen
3. C.Photolysis of water occurs
4. D.Hydroxyl ions are produced
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Answer: B Carbon (IV) oxide combines with hydrogen
41.
Which of the following food substances would give a negative reaction with Benedict's reagent?
1. A.Fructose
2. B.Glucose
3. C.Galactose
4. D.Sucrose
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Answer: D Sucrose
42.
Which of the following gases is released during the decomposition of organic matter?
1. A.Carbon(II) oxide
2. B.Sulphur (IV) oxide
3. C.Hydrogen Sulphide
4. D.Nitrous oxide
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Answer: C Hydrogen Sulphide
43.
Which of the following organisms consists of unicellular cells joined to form a filament?
1. A.Amoeba
2. B.Spirogyra
3. C.Euglena
4. D.Chlamydomonas
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Answer: B Spirogyra
44.
Which of the following organisms contains Chlorophyll in its cells?
1. A.Caterpillar
2. B.Paramecium
3. C.Euglena
4. D.Grasshopper
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Answer: C Euglena
45.
Which of the following statements is correct about the ABO blood group system?
1. A.Antigens are located on the surface of white blood cells
2. B.Antibodies are located in the blood plasma
3. C.Antibodies are located on the surface of the red blood cells
4. D.Antigens are located in the blood plasma
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Answer: B Antibodies are located in the blood plasma
46.
Which of the following statements is correct about the cross?
1. A.Both parents are heterozygous
2. B.The male is not heterozygous
3. C.The female is homozygous
4. D.Both parents are homozygous
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Answer: C The female is homozygous
47.
Which of the following traits is not inheritable? Ability to
1. A.taste P.T.C
2. B.roll the tongue
3. C.move the ear
4. D.roll the eyeball
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Answer: D roll the eyeball
48.
Which of the scientists were involved in the study of evolution? Scientist Famous work I. Charles Darwin → Preservation of some food with heat II. Gregor Mendel → Natural selection III. Jean Baptiste Lamarck → Inheritance of acquired characteristics IV. Louis Pasteur → Independent assortment of genes.
1. A.I and III
2. B.II and III
3. C.I, II and IV
4. D.II. III and IV
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Answer: A I and III
49.
Which type of breeding is represented by industrial melanism in peppered moths?
1. A.Artificial selection
2. B.Natural selection
3. C.Inbreeding
4. D.Outbreeding
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Answer: B Natural selection

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