2017 Biology WAEC SSCE (School Candidates) May/June

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Biology 1 - Objective Test Questions

  1. Which of the following groups of animals do not Possess a nervous system?
    1. Porifera
    2. Cnidaria
    3. Platyhelminthes
    4. Nematoda
  2. The structural similarities in Paramecium and Euglena are in the
    1. shape of locomotory organs.
    2. blunt anterior and pointed posterior.
    3. presence of micro and mega nuclei in both.
    4. presence of anterior and posterior contractile vacuoles.
  3. Which of the following organisms cannot exist freely on its own?
    1. Chlamydomonas
    2. Amoeba
    3. Paramecium
    4. Plasmodium
    4. The diagram below is an illustration of an Arthropod. Study it and answer question 4.
  4. The Arthropod in the diagram is not an insect because it
    1. has a big head which is almost equal to the “thorax.
    2. has eight legs and no wings.
    3. does not have visible eyes on its head.
    4. has head, thorax and abdomen.
  5. Which of the following cell organelles is the site for the production of ATP?
    1. Lysosome
    2. Nucleus
    3. Mitochondrion
    4. Ribosome
  6. An example of osmosis in plants is the
    1. movement of water through the xylem.
    2. loss of water vapour from the stomata.
    3. translocation of food through the phloem.
    4. absorption of water from the soil by the root.
  7. The organism that can carry out both autotrophic and heterotrophic modes of nutrition is
    1. Chlamydomonas.
    2. Eudorina
    3. Euglena
    4. Spirogyra
    8. The diagram below illustrates a part of the human skeleton. Study it and answer questions 8 to 10.
  8. The diagram represents the bones of the
    1. upper arm
    2. lower arm
    3. upper leg
    4. lower leg
  9. Which of the labelled parts articulates with the head of the trochlea to form a hinge joint?
    1. I
    2. II
    3. III
    4. IV
  10. The labelled part that provides surface for the attachment of the triceps is
    1. I
    2. II
    3. III
    4. IV
  11. The diagram below illustrates the transverse section of a
    1. dicotyledonous root
    2. monocotyledonous root
    3. dicotyledonous stem
    4. monocotyledonous stem
  12. Which of the following actions does not occur during exhalation in man?
    1. Thoracic cavity decreases in volume
    2. Diaphragm flattens
    3. Ribs move down and in
    4. Air pressure increases in the thoracic cavity
    13. The diagram below is an illustration of the urinary tubule ina mammal. Study it and answer questions 13 to 15.
  13. Which of the following substances is found in the part labelled II only?
    1. Lipid
    2. Protein
    3. Salts
    4. Water
  14. The part which contains the lowest concentration of urea is labelled
    1. I
    2. II
    3. III
    4. IV
  15. Which of the following substances is greater in concentration in the part labelled IV when compared to that of the part labelled I?
    1. Lipid
    2. Glucose
    3. Urea
    4. Uric acid
  16. Deamination of amino acids in the liver produces
    1. Blood sugar
    2. glycogen
    3. bile
    4. Urea
  17. Which of the following glands also serves as an exocrine gland?
    1. Ovary
    2. Pancreas
    3. Adrenal
    4. Thyroid
  18. Which of the following sequences is the correct route of the transmission of impulses along a reflex arc?
    1. Receptor — sensory neurone — synapse intermediate neurone — synapse > motor neurone effector
    2. Receptor —motor neurone — synapse - intermediate neurone — synapse > sensory neurone- effector
    3. Effector -> intermediate neurone > synapse — motor neurone — synapse — sensory neurone —> receptor
    4. Effector —> motor neurone — synapse —> sensory neurone + synapse — intermediate neurone > receptor
  19. When viewing an object that is close to the human eye, the
    1. eye lens become thin
    2. ciliary muscles relax
    3. suspensory ligament becomes taut
    4. eye lens become fat
  20. The part labelled I is the
    1. acrosome
    2. nucleus
    3. mitochondrion
    4. tail
  21. The function of the part labelled II is to
    1. fuse with the ovum during fertilization.
    2. generate the energy for the sperm to swim to the fallopian tube.
    3. help the sperm to swim forward.
    4. dissolve the membrane of the egg during fertilization.
  22. Which of the following types of placentation is not common amongst syncarpous pistils?
    1. Marginal
    2. Axile
    3. Parietal
    4. Free central
  23. The complex energy-rich organic matter which living organisms need for life is
    1. Water
    2. air
    3. food
    4. mineral salts
  24. Which of the following processes are associated with photosynthesis? I. Energy from sunlight is absorbed II. Carbon dioxide is evolved III. Oxygen is given off IV. Glucose is synthesized
    1. I and II only
    2. I, II and IV only
    3. I, III and IV only
    4. I, II, III and IV
  25. Which of the following functions is associated with calcium in plants? Formation of
    1. Cell wall
    2. ribosomes
    3. proteins
    4. cell membrane
    26. The diagrams below are illustrations of the dentition of an organism. Study them and answer questions 26 to 28
  26. The dentition belongs to a
    1. rabbit
    2. cat
    3. frog
    4. man
  27. The function of the teeth labelled X is for
    1. biting and grasping
    2. chewing and grinding
    3. tearing and grasping
    4. chewing and tearing
  28. he teeth which are absent in the young of the organism are labelled
    1. W
    2. X
    3. Y
    4. Z
  29. The number of individuals that the environment can support over a long period of time is its
    1. Growth rate
    2. total capacity
    3. population capacity
    4. carrying capacity
  30. A good site for secondary succession would be
    1. A sand dune
    2. a bare rock
    3. a land that has just had forest fire
    4. a stretch of barren land
  31. A population which exceeds its carrying capacity and then collapses is represented graphically by a
    1. bell-shaped curve
    2. linear curve
    3. sigmoid curve
    4. skewed curve
  32. The natural dwelling place of an organism is called its
    1. ecological niche
    2. habitat
    3. population
    4. environment
  33. Which of the following ecological factors will result in food shortage?
    1. Drought
    2. Low rate of reproduction
    3. Emigration
    4. Topography
  34. Soil permeability refers to
    1. how easily water passes through the soil
    2. the proportion of air in the soil
    3. the proportion of water the soil holds
    4. how well water rises up the soil
  35. Which of the following groups of organisms do not have members that can be called autotrophs?
    1. Protists
    2. Mosses
    3. Chlorophyta
    4. Fungi
  36. Which of the following pyramids gives the most accurate picture of the relationships between the organisms at the various trophic levels in a food chain? A pyramid of
    1. numbers
    2. energy
    3. biomass
    4. size
  37. Which of’ the following statements is not associated with pyramids of energy?
    1. Efficiency of energy transfer between trophic levels can be studied
    2. Comparisons of pyramids for different ecosystems can be made
    3. More accurate comparisons of trophic levels
    4. Representation of numbers of organisms at different trophic levels
  38. Which of the following materials is not easily biodegradable?
    1. Polythene bag
    2. Cotton bag
    3. Hides and skin bag
    4. Paper bag
  39. Which of the following pairs of organisms is in a mutualistic relationship?
    1. Hydra and Sea anemone
    2. Hermit crab and Sea anemone
    3. Dodder plant and Cocoa plant
    4. Mistletoe and Kolanut
  40. The establishment of game reserves and parks is a method of
    1. conserving natural resources.
    2. cultivating game.
    3. controlling pollution.
    4. cultural awareness.
  41. Which of the following practices is not used in conserving water?
    1. Afforestation
    2. Damming
    3. Deforestation
    4. Reforestation
  42. Which of the following resources cannot be renéwed?
    1. air
    2. petroleum
    3. Food crop
    4. soil
    43. Use the diagram below to answer question 43.
  43. The type of variation illustrated above is
    1. continuous variation
    2. discontinuous variation
    3. morphological variation
    4. environmental variation
  44. Which of the following characters is not a morphological variation?
    1. Shape of the nose
    2. Colour of skin
    3. Colour of hair
    4. Tongue rolling
  45. An apple plant can produce sexually and asexually and it has 40 chromosomes in its leaf cells. How many chromosomes would be in each gamete and somatic cell?
    1. 20 chromosomes in the gametes and 10 in the somatic cells
    2. 40 chromosomes in the gametes and 20 in the somatic cells
    3. 20 chromosomes in the gametes and 40 in the somatic cells
    4. 40 chromosomes in the gametes and 40 in the somatic cells
  46. Assuming that A is the gene for normal skin colour and is dominant, while a is the gene for albinism and is recessive, what is the likely genotype of the couple which had 50% normal and 50% albino offspring?
    1. AA, aa
    2. Aa, aa
    3. AA, Aa
    4. Aa, Aa
  47. Which of the following statements is true about mutation?
    1. Phenotype is not involved
    2. genotype is not involved
    3. artificial induction is not possible
    4. genotype is involved
  48. One of the structural adaptations of mammals for movement on land is the development of the
    1. hollow bones
    2. pendactyl limb
    3. fused thoracic bones
    4. streamlined body
  49. Which of the following traits is not characteristic of social insects?
    1. All members are identical
    2. There is division of labour
    3. The members dwell in the same habitat
    4. Some members protect the queen
  50. The gradual cumulative, adaptive and heritable changes in an organism over a long period of time resulting in new species is called
    1. Adaptation
    2. Survival
    3. Organic evolution
    4. interspecific competition

Theory Questions

Section A - For All Candidates

      1. What is classification of living things?
      2. Name the scientist that developed the Binomial system of classification.
      3. State three reasons why it is necessary to classify living things.
      4. List seven major groups into which Taxonomists classify living things in order of hierarchy.
      5. Sub-question v
    2. State two features each which viruses have in common with:
      1. living things
      2. non-living things
    3. Name two viral diseases each of:
      1. plants
      2. humans
    1. State four characteristics of enzymes.
      1. List two digestive enzymes produced in the duodenum of humans.
      2. Name the substrate that each enzyme listed in 2(b)(1) acts on.
      3. State the products of each enzyme activity in 2(b)(ii)
      1. State one way in which chlorophyll is important in plants.
      2. Name two macroelements that are required for the formation of chlorophyll in plants.
      3. State one deficiency symptom of each macroelement named in 2(c)(ii).
    4. Outline the procedure used for testing for starch in a leaf.
    1. Name one instrument used for collecting:
      1. soil organisms from a soil sample
      2. tiny insects from a leaf or a stem.
    2. Make a diagram-6cm — 8cm long of the instrument named in 3(a)(ii).and label fully.
    3. Explain briefly the relationship between three examples of symbiotic organisms.
    1. A child belongs to blood group O and the mother belongs to group B. With the aid of a genetic cross, state the possible blood groups of the father.
      1. Name two forms of adaptive communication in animals.
      2. State two-reasons why organisms communicate with one another.

Section C - For Candidates in Nigeria Only

    1. Explain briefly the process of perceiving smell in humans.
    2. State the adaptive features of the egg of a domestic fowl.
      1. What are autotrophs?
      2. Name two unicellular organisms that are autotrophs.
    4. State five functions of the World Health Organization.
    5. Name two examples each of plants and animals that live in a freshwater pond.
      1. plants
      2. animals
    6. State five differences between the skin of a mammal and the ‘epidermis of a leaf.
    7. A farmer has two plots of land; plots A and B. On plot A, the farmer planted several seeds of maize. On plot B, the farmer planted several seeds of maize and pepper in a small area. What type of competition would be observed on:
      1. plot A
      2. plot B

    Biology 3 - Practical Questions

    Section A - For All Candidates

    1. Study specimens C,D and E carefully and answer questions 1(a) to 1(e).
        1. Name the phylum to which specimens C and E belong.
        2. State two reasons for the answer in 1(a)(1).
      2. State three observable structural differences between the following specimens
        1. C and D
        2. C and E
      3. What is the relationship between specimens C and D ?
        1. Name the habitat of specimen D.
        2. State two ways specimen D is adapted to its habitat
        3. Make a drawing, 8cm - 10cm long of the dorsal view of specimen C and label fully
    2. Study specimens F and G carefully and answer questions 2(a) and 2(b)
      1. (a) State three observable features of biological importance In.
        1. Specimen F
        2. Specimen G
        1. Classify specimens F and G as either stem tuber or root tuber.
        2. Give two reasons each for the answer in 2(b)(i)
      3. Classify specimens H and J into the class to which both belong.
        1. state four observable differences between specimens H and J.
        2. State four observable similarities between specimens H and J
        1. State the feeding habits of each of specimens H and J
        2. Name two observable features used for feeding in specimen J.
    1. Study specimen R and answer questions 4(a) to 4(c)
        1. Name the phylum of specimen R.
        2. State two reasons for the answer in 4(a)(i)
        3. State the habitat of specimen R.
        1. State two structural features that adapt specimen R to its habitat.
        2. State three ways in which specimen R is of economic importance.
        3. Sub-question iii
        4. Sub-question iv
        5. Sub-question v
      3. Make a drawing. 8cm — 10cm long of the dorsal view of specimen R and label fully. Study specimens S and T and answer questions 4(d) to 4(e).
      4. What type of fruits are specimens S and T?
        1. State four observable differences between specimens S and T.
        2. State three observable similarities between specimens S and T.
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