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WAEC (WASSCE) 2016

2016 WAEC (WASSCE) Biology Past Questions

The 2016 WAEC (WASSCE) Biology past questions with answers: 47 objective questions from the 2016 paper in the DeeepSolve question bank, each with its answer behind "Show answer". Try each question before you check, then practise the paper as a timed WAEC-style CBT.

Past questions © the examination body (JAMB/WAEC/NECO). DeeepSolve is not affiliated with them. Rights holders: see /copyright.

Questions

  1. 1.

    In ecology, a community refers to

    1. A.a number of individuals of a given species
    2. B.groups of different organisms living in a habitat
    3. C.existing species in an abandoned farmland
    4. D.the dominant species in a habitat
    Show answer

    Answer: B. groups of different organisms living in a habitat

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  2. 2.

    Overcrowding in a population does not result in

    1. A.death
    2. B.commensalism
    3. C.competition
    4. D.migration
    Show answer

    Answer: B. commensalism

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  3. 3.

    Food webs are complex because

    1. A.the number of producers are large
    2. B.many animals feed directly on producers
    3. C.they include primary, secondary and tertiary consumers
    4. D.some animals form part of several food chains
    Show answer

    Answer: D. some animals form part of several food chains

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  4. 4.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  5. 5.

    The inability of an organism to adapt to its habitat can lead to

    1. A.dormancy
    2. B.adaptation
    3. C.extinction
    4. D.survival
    Show answer

    Answer: C. extinction

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  6. 6.

    The best time to pluck the leaf for the experiment is

    1. A.after being exposed to sunlight
    2. B.three hours after sunset
    3. C.before sunrise
    4. D.six hours after sunset
    Show answer

    Answer: C. before sunrise

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  7. 7.

    The exchange of gases between the environment and the respiratory organs of vertebrates is referred to as

    1. A.inhalation
    2. B.respiration
    3. C.expiration
    4. D.breathing
    Show answer

    Answer: D. breathing

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  8. 8.

    Lateral meristem in flowering plants is found in the

    1. A.cortex
    2. B.pericycle
    3. C.cambium
    4. D.pith
    Show answer

    Answer: C. cambium

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  9. 9.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  10. 10.

    The maintenance of a constant internal environment in an organism is known as

    1. A.homeostasis
    2. B.homoiothermy
    3. C.diuresis
    4. D.dialysis
    Show answer

    Answer: A. homeostasis

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  11. 11.

    Which of the following natural resources cannot be conserved?

    1. A.soil
    2. B.water
    3. C.wildlife
    4. D.air
    Show answer

    Answer: D. air

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  12. 12.

    Which of the following structures is not an organ of the disgestive system?

    1. A.Oesophagus
    2. B.Pancreas
    3. C.Stomach
    4. D.Kidney
    Show answer

    Answer: D. Kidney

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  13. 13.

    A blend of inherited and acquired characteristics shows

    1. A.variation
    2. B.inheritance
    3. C.evolution
    4. D.heredity
    Show answer

    Answer: A. variation

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  14. 14.

    Which of the following actions is NOT a voluntary action?

    1. A.Stealing
    2. B.Sneezing
    3. C.Fighting
    4. D.Cheating
    Show answer

    Answer: B. Sneezing

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  15. 15.

    Which of the following substances is not usually present in the urine of a healthy person?

    1. A.Urea
    2. B.Mineral salts
    3. C.Glucose
    4. D.Water
    Show answer

    Answer: C. Glucose

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  16. 16.

    The major problem experience by organisms living in small water bodies is

    1. A.drying up
    2. B.oxygen deficiency
    3. C.scarcity of food
    4. D.wave action
    Show answer

    Answer: A. drying up

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  17. 17.

    Plant A was seen to appear as Plant B after seven hours Study the above diagrams carefully and answer the questions. The term that can be used to describe what happened to Plant A after seven hours is

    1. A.wilting
    2. B.competition
    3. C.transpiration
    4. D.Osmosis
    Show answer

    Answer: D. Osmosis

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  18. 18.

    The association between two organisms in which one of the organisms gains and the other loses is referred to as

    1. A.saprophytism
    2. B.commensalism
    3. C.mutualism
    4. D.parasitism
    Show answer

    Answer: D. parasitism

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  19. 19.

    Special modification which enable an organism to survive in its habitat is known as.

    1. A.adaptation
    2. B.tolerance
    3. C.mimicry
    4. D.colouration
    Show answer

    Answer: A. adaptation

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  20. 20.

    Which of the following parts of the ear does NOT contain endolymph?

    1. A.Semi-circular canals
    2. B.Utriculus
    3. C.Tympanum
    4. D.Sacculus
    Show answer

    Answer: C. Tympanum

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  21. 21.

    The cells and tissues of the nose, throat, chest diaphragm and lungs from the

    1. A.circulatory system
    2. B.respiratory
    3. C.transport system
    4. D.digestive system
    Show answer

    Answer: B. respiratory

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  22. 22.

    An organism at the start of a food chain which provides the total input energy into an ecosystem is the

    1. A.sun
    2. B.producer
    3. C.consumer
    4. D.decomposer
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    Answer: B. producer

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  23. 23.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  24. 24.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  25. 25.

    A noticeable physical appearance of individuals of the same species is called

    1. A.physical variation
    2. B.morphological variation
    3. C.physiological variation
    4. D.discontinuous variation
    Show answer

    Answer: B. morphological variation

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  26. 26.

    Which of the following terms is associated with natural selections?

    1. A.adaptive radiation
    2. B.Differential reproduction
    3. C.Population variability
    4. D.Survival of the fittest
    Show answer

    Answer: D. Survival of the fittest

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  27. 27.

    The steps below are involved in the testing of a leaf for starch. Study them carefully and answer the question: I. Decolorize them II. Dip decolorized leaf in warm water III. Place leaf in boiling water IV. Add iodine solution The CORRECT order for the test is?

    1. A.I, II, III and IV
    2. B.I, III, II and IV
    3. C.II, III,, I and IV
    4. D.III, I, II and IV
    Show answer

    Answer: D. III, I, II and IV

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  28. 28.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  29. 29.

    A pandemic is an outbreak of disease that

    1. A.is confined to a town
    2. B.is wide spread
    3. C.will not spread
    4. D.has limited spread
    Show answer

    Answer: B. is wide spread

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  30. 30.

    Which of the following relationships does not involve two organisms?

    1. A.Commensalism
    2. B.Saprophitism
    3. C.Symbiosis
    4. D.Parasitism
    Show answer

    Answer: B. Saprophitism

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  31. 31.

    The capillarity of a soil refers to

    1. A.the particle size of soil
    2. B.how easily water passes through soil
    3. C.how well water rises up in soil
    4. D.proportion of water a soil holds
    Show answer

    Answer: C. how well water rises up in soil

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  32. 32.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  33. 33.

    A cross between two parents produced four offspring's with blood groups AB, BB, BO and AO. what is the blood group of their parents?

    1. A.AA and BO
    2. B.BB and AO
    3. C.AB and BO
    4. D.AB and AO
    Show answer

    Answer: C. AB and BO

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  34. 34.

    Scientists who study genetics are known as

    1. A.genealogist
    2. B.geneticist
    3. C.mendalists
    4. D.genescientists
    Show answer

    Answer: B. geneticist

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  35. 35.

    The steps below are involved in the testing of a leaf for starch. Study them carefully and answer the question: I. Decolorize them II. Dip decolorized leaf in warm water III. Place leaf in boiling water IV. Add iodine solution The best time to pluck the leaf for the experiment is?

    1. A.after being exposed to sunlight
    2. B.three hours after sunset
    3. C.before sunrise
    4. D.six hours after sunset
    Show answer

    Answer: A. after being exposed to sunlight

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  36. 36.

    In which of the plant tissues are guard cells located?

    1. A.Epidemis
    2. B.MesophyII
    3. C.Vascular bundles
    4. D.Meristems
    Show answer

    Answer: A. Epidemis

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  37. 37.

    The rational and prudent use of natural resources is known as

    1. A.presrevation
    2. B.conservation
    3. C.utilization
    4. D.management
    Show answer

    Answer: B. conservation

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  38. 38.

    Which of the following scientists did not contribute to the development of genetics?

    1. A.Wilhem Johannsen
    2. B.Felix Durjadin
    3. C.Thomas Morgan
    4. D.Gregor Mendel
    Show answer

    Answer: B. Felix Durjadin

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  39. 39.

    A sick baby was successfully transfused with blood from the father who has blood group AB. What is the group of the the sick baby?

    1. A.A
    2. B.B
    3. C.AB
    4. D.O
    Show answer

    Answer: C. AB

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  40. 40.

    Flaccidity in plants is associated with

    1. A.cessation of photosynthesis
    2. B.wilting
    3. C.turgidity
    4. D.discolouration of leaves
    Show answer

    Answer: B. wilting

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  41. 41.

    The function of the villi in the alimentary canal is to

    1. A.secrete gastric juice
    2. B.Curdle milk
    3. C.emulsify fat
    4. D.increase the surface area for absorption
    Show answer

    Answer: D. increase the surface area for absorption

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  42. 42.

    Which of the following actions supports conservation? To

    1. A.protect endangered species
    2. B.preserve trees for timber
    3. C.permit hunting activities
    4. D.provide income for the government
    Show answer

    Answer: A. protect endangered species

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  43. 43.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  44. 44.

    In which of the following insects is group instinct not displayed?

    1. A.Solder ants
    2. B.Cockroaches
    3. C.Honey bees
    4. D.Termites
    Show answer

    Answer: B. Cockroaches

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  45. 45.

    Which of the following organs is responsible for the production of insulin?

    1. A.Spleen
    2. B.Adrenal gland
    3. C.Thyroid gland
    4. D.Pancreas
    Show answer

    Answer: D. Pancreas

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  46. 46.

    The direction wind is determined by

    1. A.an anemometer
    2. B.a Secchi disc
    3. C.a wind vane
    4. D.a barometer
    Show answer

    Answer: C. a wind vane

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  47. 47.

    Plant A was seen to appear as Plant B after seven hours Study the above diagrams carefully and answer the questions. The environmental factors responsible for the condition in plant B are

    1. A.low humidity and low temperature
    2. B.high humidity and low temperature
    3. C.low humidity and high temperature
    4. D.high humidity and high temperature
    Show answer

    Answer: D. high humidity and high temperature

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