Biology past questions: NECO SSCE 2003

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

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

1.
A flower made up of one carpel is referred to as
1. A.apocarpous
2. B.monocarpus
3. C.monogamous
4. D.pericarpus
5. E.Syncarpous
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Answer: B monocarpus
2.
A population can be referred to as the number of
1. A.adult organisms in an ecosystem
2. B.female species in an ecosystem
3. C.male species in an ecosystem
4. D.organisms of same species in an ecosystem
5. E.organisms that can withstand harsh conditions
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Answer: D organisms of same species in an ecosystem
3.
Autecology is defined as the study of Interrelationship of
1. A.many species of organisms and their environment
2. B.same species of organisms and their environment
3. C.organisms in the atmosphere
4. D.organisms under the earth's surface
5. E.organisms in water
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Answer: B same species of organisms and their environment
4.
Chromosomes are found in the
1. A.cell membrane
2. B.centriole
3. C.mitochondrion
4. D.nucleus
5. E.lysosome
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Answer: D nucleus
5.
Herbicides are chemicals used to
1. A.check the spread of diseases
2. B.control dormancy in seeds
3. C.control insects
4. D.control weeds
5. E.control pests
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Answer: D control weeds
6.
Here is a list of natural resources: I. Wildlife II. Forest III. Fossil fuel IV. Minerals Which of the natural resources are non-renewable?
1. A.I and II only
2. B.I and III only
3. C.I and IV only
4. D.II and III only
5. E.III and IV only
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Answer: E III and IV only
7.
Here is a list of natural resources: I. Wildlife II. Forest III. Fossil fuel IV. Minerals Which of the natural resources are renewable?
1. A.I and IV
2. B.II and III
3. C.I and II
4. D.I and III
5. E.I, II, III and IV
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Answer: C I and II
8.
i 2/2, c 1/1, pm 2/2, m 3/3 The above dental formula represents the dentition of
1. A.cow
2. B.dog
3. C.man
4. D.rabbit
5. E.sheep
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Answer: C man
9.
Sneezing in man is controlled by?
1. A.cerebellum
2. B.cerebrum
3. C.hypothalamus
4. D.pineal body
5. E.medulla oblongata
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Answer: E medulla oblongata
10.
The association between guinea worm and tissues of man is called
1. A.commensalism
2. B.parasitism
3. C.predation
4. D.Saprophytism
5. E.Symbiosis
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Answer: B parasitism
11.
The axial skeleton is made up of
1. A.fore and hind limbs
2. B.limbs and limb girdles
3. C.ribs and sternum
4. D.skull and limbs
5. E.skull and spine
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Answer: E skull and spine
12.
The bee that lays eggs in a hive is called
1. A.broiler
2. B.drone
3. C.layer
4. D.queen
5. E.worker
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Answer: D queen
13.
The biosphere can best be defined as part of the
1. A.atmosphere that contains moisture
2. B.earth that contains gases
3. C.earth that is liquid
4. D.earth that supports life
5. E.ocean that supports life
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Answer: D earth that supports life
14.
The excretory organ of earthworms is known as
1. A.contractile vacuole
2. B.flame cell
3. C.malphigian tubule
4. D.nephridium
5. E.kidney
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Answer: D nephridium
15.
The following are courtship behaviors in animals EXCEPT
1. A.copulation
2. B.display
3. C.pairing
4. D.seasonal migration
5. E.territoriality
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Answer: D seasonal migration
16.
The following are effects of food shortage on population size EXCEPT
1. A.competition
2. B.decline in reproduction
3. C.emigration
4. D.increase in natality
5. E.mortality
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Answer: D increase in natality
17.
The following are major groups of the plant kingdom EXCEPT
1. A.Bryophyta
2. B.Chiorophyta
3. C.Pteridophyta
4. D.Spermatophyta
5. E.Thallophyta
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Answer: B Chiorophyta
18.
The function of digestive enzymes is to
1. A.acidify food
2. B.build up food
3. C.emulsify fats
4. D.quicken absorption
5. E.enhance food breakdown
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Answer: E enhance food breakdown
19.
The organelle responsible for the transportation of substances within the cell is
1. A.cell membrane
2. B.chloroplast
3. C.endoplasmic reticulum
4. D.lysosome
5. E.mitochondrion
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Answer: C endoplasmic reticulum
20.
The process by which some organisms oxidize inorganic compounds to obtain energy is known as
1. A.catabolism
2. B.chemosynthesis
3. C.glycolysis
4. D.metabolism
5. E.photosynthesis
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Answer: C glycolysis
21.
The rate of transpiration of a leafy shoot can be measured with
1. A.anemometer
2. B.barometer
3. C.photometer
4. D.potometer
5. E.thermometer
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Answer: D potometer
22.
The respiratory structures of insects are
1. A.body surfaces
2. B.gills
3. C.kidneys
4. D.lung
5. E.tracheae
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Answer: E tracheae
23.
The sun rays reach the earth's surface by
1. A.conduction
2. B.convection
3. C.radiation
4. D.reflection
5. E.refraction
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Answer: C radiation
24.
The tip of the tongue is sensitive to
1. A.bitter taste
2. B.salty taste
3. C.sweet taste
4. D.salty and sweet taste
5. E.sour taste
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Answer: C sweet taste
25.
Thrombocytes are responsible for
1. A.blood clotting
2. B.digestion of food
3. C.ingestion of bacteria
4. D.transportation of digested food
5. E.transportation of dissolved oxygen
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Answer: A blood clotting
26.
Translocation of food substances in plants takes place through
1. A.collenchyma
2. B.parenchyma
3. C.phloem
4. D.sclerenchyma
5. E.xylem
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Answer: C phloem
27.
Vitamin K deficiency causes
1. A.constipation
2. B.indigestion
3. C.low sperm count
4. D.uncontrolled haemorrhage
5. E.stomach and duodenal ulcer
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Answer: D uncontrolled haemorrhage
28.
When a plant shows reddish leaves, the soil is deficient in
1. A.calcium
2. B.iron
3. C.nitrogen
4. D.phosphorus
5. E.sulphur
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Answer: D phosphorus
29.
Which of the following factors affect population?
1. A.competition and natality rate
2. B.heat and space
3. C.food and mortality rate
4. D.Space and competition
5. E.Water and light
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Answer: E Water and light
30.
Which of the following factors affects enzyme activity?
1. A.Atmospheric pressure
2. B.oxygen
3. C.carbondioxide
4. D.temperature
5. E.Rainfall
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Answer: D temperature
31.
Which of the following instruments is used for measuring the speed of wind?
1. A.anemometer
2. B.barometer
3. C.hygrometer
4. D.manometer
5. E.windvane
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Answer: A anemometer
32.
Which of the following is a liver disease?
1. A.diuresis
2. B.dropsy
3. C.hepatitis
4. D.nephritis
5. E.oedema
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Answer: C hepatitis
33.
Which of the following is an example of a multiple fruit?
1. A.cashew
2. B.maize
3. C.mango
4. D.orange
5. E.pineapple
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Answer: E pineapple
34.
Which of the following is an immediate source of energy to man?
1. A.Beans
2. B.Butter
3. C.Egg
4. D.Orange
5. E.Plantain
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Answer: D Orange
35.
Which of the following is NOT a family planning method?
1. A.abstinence
2. B.contraceptive device
3. C.masturbation
4. D.sterilization
5. E.use of condoms
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Answer: C masturbation
36.
Which of the following is NOT a function of dilute hydrochloric acid secreted in the stomach of man?
1. A.acidities the contents
2. B.activates pepsin
3. C.inactivates pepsin
4. D.inactivates ptyalin
5. E.kills micro organisms
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Answer: C inactivates pepsin
37.
Which of the following is NOT a function of the mammalian skin?
1. A.detoxication
2. B.excretion
3. C.production of vitamin D
4. D.protection
5. E.temperature control
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Answer: A detoxication
38.
Which of the following is NOT a plant hormone?
1. A.Abscissic acid
2. B.Auxin
3. C.Cytokinin
4. D.Cytochrome
5. E.Gibberellins
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Answer: D Cytochrome
39.
Which of the following is NOT an excretory organ?
1. A.Heart
2. B.Kidney
3. C.Liver
4. D.Lung
5. E.Skin
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Answer: A Heart
40.
Which of the following is NOT true of enzymes?
1. A.Their reactions are reversible
2. B.Their reactions are irreversible
3. C.They remain unchanged after the reaction
4. D.They are affected by high temperatures
5. E.They have active sites
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Answer: B Their reactions are irreversible
41.
Which of the following organisms possesses both plant and animal characteristics?
1. A.Amoeba
2. B.Euglena
3. C.Paramecium
4. D.Spirogyra
5. E.Volvox
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Answer: B Euglena
42.
Which of the following plant products can be used to confirm that photosynthesis has taken place?
1. A.glucose
2. B.fats
3. C.protein
4. D.starch
5. E.vitamins
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Answer: D starch
43.
Which of the organisms is a primary consumer?
1. A.Cassava
2. B.Grasshopper
3. C.Hawk
4. D.Lizard
5. E.Toad
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Answer: B Grasshopper
44.
Which practice does NOT promote the health of the community?
1. A.burning of refuse in incinerators
2. B.disposal of human sewage using water closets
3. C.legislating in favour of sexual indulgence
4. D.provision of portable pipe-borne water
5. E.sitting of industries downstream away from habitations
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Answer: C legislating in favour of sexual indulgence

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