JAMB - Biology (2006)

  • 1
    Night-blindness result from a deficiency of
    Atsakymas
    (B)
    Vitamin A
  • 2
    The product of excretion common to the mammalian kidney, lung and skin is
    Atsakymas
    (C)
    water
  • 3
    An increase in air pressure in the lungs is due to the
    Atsakymas
    (C)
    relaxation of the diaphragm
  • 4
    One basic similarity between nervous and endocrine system is that they both
    Atsakymas
    (C)
    involve the use of chemical substances
  • 5
    The organ situated in the pericardial cavity of a mammal is the
    Atsakymas
    (A)
    heart
  • 6
    A unique characteristics of the cervical vertebrae is the presence of
    Atsakymas
    (D)
    vertebrartarial canal
  • 7
    In rabbit the chamber of the heart that receives oxygenated blood from the lungs is the
    Atsakymas
    (B)
    left auricle
  • 8
    The formation of water in the tissue respiration results from the
    Atsakymas
    (B)
    reduction of oxygen by hydrogen
  • 9
    Water is necessary for a germinating seed because it
    Atsakymas
    (B)
    activate the enzymes
  • 10
    Which of the following produces both hormones and enzymes
    Atsakymas
    (B)
    pancreas
  • 11
    The mammalian vein which starts with and ends in a capillary network is the
    Atsakymas
    (D)
    hepatic portal vein
  • 12
    In the transverse of a dicot stem, the region lying between the endodermis and the vascular bundle is the
    Atsakymas
    (B)
    pericycle
  • 13
    The two normal types of sex chromosomes are
    Atsakymas
    (D)
    XX and XY
  • 14
    One advantage of variation in a species population is that individuals
    Atsakymas
    (D)
    are better adapted to changes
  • 15
    Mendel's second law of inheritance states that
    Atsakymas
    (B)
    alleles segregates independently
  • 16
    The intensity of competition among animals in a given area will increase with 
    Atsakymas
    (B)
    an increase in population size
  • 17
    The part of the mammalian skin involved in temperature regulation is the
    Atsakymas
    (A)
    sweat gland
  • 18
    The role of the Golgi complex in an eukaryotic cell is to
    Atsakymas
    (D)
    transport organic materials in and out of the cells
  • 19
    The dominant phase in the life cycle of a bryophyte is the
    Atsakymas
    (C)
    gametophyte
  • 20
    The evidence that supports the advancement of ferns over mosses is derived from
    Atsakymas
    (A)
    comparative anatomy
  • 21
    Which of the following vertebrates has the most simple structured heart?
    Atsakymas
    (B)
    fish
  • 22
    One primitive feature of the coelenterates is the possession of
    Atsakymas
    (B)
    radial symmetry
  • 23
    A characteristic that best exemplifies the evolutionary advancement of mammals over other vertebrates is the
    Atsakymas
    (A)
    viviparous mode of reproduction
  • 24
    An organism which exhibits extracellular digestion is
    Atsakymas
    (D)
    rhizopus
  • 25
    The causative agent of typhoid fever is
    Atsakymas
    (A)
    salmonella
  • 26
    Grasses recover quickly from bush fires in the savanna because of their
    Atsakymas
    (A)
    perennating organs
  • 27
    Climax communities in a biotic succession are usually characterized by
    Atsakymas
    (C)
    a stable composition of plant and animal species
  • 28
    The soil type that contain nutrients which are not readily available for plants is
    Atsakymas
    (B)
    clayey
  • 29
    A population that doubles in size at constant intervals is an indication of
    Atsakymas
    (B)
    exponential growth
  • 30
    Hassan and Hussain are identical twins but Hassan grows taller and fatter from Hussain. This is probably because
    Atsakymas
    (D)
    They are raised in different environment
  • 31

    The organ through which the embryo receives food, water and oxygen is labelled

    Atsakymas
    (C)
    II
  • 32
    Mammals are capable of producing hypertonic urine mainly because of re-absorption in the
    Atsakymas
    (D)
    Loop of henle
  • 33

    Using the diagram, sexual reproduction is illustrated in

    Atsakymas
    (B)
    I
  • 34

    Using the diagram, A plant that exhibits the type of reproduction shown in IV is

    Atsakymas
    (C)
    bryophyllum
  • 35

    Using the diagram, the part labelled IV is for

    Atsakymas
    (C)
    protection
  • 36

    The diagram represents the structure of

    Atsakymas
    (D)
    DNA
  • 37

    In the diagram, the part labelled I represents the

    Atsakymas
    (A)
    base pairs
  • 38

    In the diagram, the change in the length of the neck of the giraffes shown was brought about by

    Atsakymas
    (D)
    natural selection
  • 39

    In the diagram, the variation illustration is

    Atsakymas
    (B)
    morphological
  • 40

    In the diagram, The economic importance of the larva is that it

    Atsakymas
    (D)
    feeds on the leaves of crops
  • 41

    In the diagram, the type of adaptation shown in the larva is

    Atsakymas
    (D)
    disruptive colouration
  • 42

    In the diagram, The maxillary palp is labelled?

    Atsakymas
    (B)
    iv
  • 43

    In the diagram, the structure labelled I is sensitive to

    Atsakymas
    (D)
    chemicals and touch
  • 44

    In the diagram, A unique characteristic that distinguishes the class of vertebrates represented from other vertebrates is the presence of

    Atsakymas
    (D)
    a covering of feathers
  • 45

    In the diagram, the structures used for offense and defense are labelled

    Atsakymas
    (B)
    i and ii