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Waec 2024 Biology Practical Questions And Answers - solutionfans.com
   

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    (1a)
    Phylum: Chordata
    Class: Aves

    (1b)
    (i)Dark red color
    (ii)Smooth texture
    (iii)Irregular shape

    (1c)
    (i)metabolizing nutrients and detoxifying harmful substances.
    (ii)stores essential nutrients such as vitamins and minerals.
    (iii)regulate blood sugar levels and cholesterol levels.

    (1cii)
    Spec D. Grinding: The gizzard helps grind food particles before digestion.
    Spec E. Absorption: The intestine absorbs nutrients from digested food.

    (1ciii)
    Spec D; possession of grit
    Spec E; possession of large surface area

    (1d)
    TABULATE
    Under observation
    (i)red litmus turn blue
    (ii)No effect on blue litmus

    -Under inference-
    (i) Alkaline
    (ii)Not acidic

    (1dii)
    (i)emulsification of fats
    (ii)Give forces it’s colour
    (iii) Digestion

    (1ei)
    Digestive system

    (1eii)
    D

    (1fi)
    Heterotrophic

    (1fii)
    Maize

    (2a)
    (i)for propagation
    (ii)serve as storage organ
    (iii)For photosynthesis
    (iv)For gaseous exchange

    (2bi)
    Spec F; for propagation
    Spec K; serve as storage organ

    (2bii)
    Spec F; it is reproductive in nature
    Spec K; due to the nature of it surface

    (2biii)
    Spec F; root
    Spec K; stem

    (2c)
    TABULATE
    Under: Spec F;
    (i)small size
    (ii)Presence of nodes
    (iii) terminal bod id present
    (iv) Absence of adventurous root

    Under: Spec K;
    (i)big size
    (ii)Absence of node
    (iii)terminal bod is absent
    (iv)presence of adventurous root

    (2cii)
    Grey colour

    (2d)

    (3a)
    L- chest (middle portion of there)

    Q- Lower back region of the Spine

    (3bi)
    TABULATE
    (PICK ANY FOUR)
    L || Q

    UNDER L
    (i) Smaller and have a heart-shaped body
    UNDER Q
    (i) Larger and have a kidney -Shaped body

    UNDER L
    (ii) occur after the Cervical vertebra
    UNDER Q
    (ii) occur below the thoracic vertebrae

    UNDER L
    (iii) Transverse processes are fairly large
    UNDER Q
    (iii) Transverse processes are lage and blunt

    UNDER L
    (iv) Curve in the posterior direction
    UNDER Q
    (iv) Curve in the anterior direction

    UNDER L
    (v) intervertebral disk is thin
    UNDER Q
    (v) intervertebral disk is massive

    (3bii)
    (i) Both have a Single Spinous process projecting Posteriorly.
    (ii) Both have Superior and inferior articular.
    (iii) Both posseses a pair tranverse processes.
    (iv) Both have a vertebral arch.

    (3ci)
    Spec M; scapula
    Spec P; fibula

    (3cii)
    Spec L; cervical, slumber
    Spec Q; thoracic, sacral

    (3d)



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    Master Solution May 28, 2024 Categories: WAEC 67


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