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Author Topic: CORRECT: 2019/2020 WAEC BIOLOGY PRACTICAL Questions And Answer Expo/Runs free  (Read 2086 times)

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Offline JEFFREY96

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Real 2019/2020 WAEC BIOLOGY PRACTICAL Real Questions And Answers  Expo Runs Runz
====================
*Wednesday 15th May, 2019*
Biology 3 (Practical) (Alternative A) – 09:30 a.m. – 11:30a.m. (1st Set)
Biology 3 (Practical) (Alternative A) – 12:00 p.m – 2:00 p.m. (2nd Set)
====================

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    Offline JEFFREY96

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    (1a)
    The branch of biology that involves the use of specimen A, B,C,D,E and F is ecology
    (1b)
    A - use for measuring temperature or determine the degree of hottest or coldness of the an object/organ/organism

    B- for measuring the amount  and volume of rainfall in an ecosystem

    C - (i) to measure the length, height and width of an object /length
    (ii)to measure the growth rate of an organism

    D- for collecting insects/creeping and crawling animals

    E - for finding wind direction

    F - To establish population of plants in an ecosystem

    (1d)
    In progress

    (1e)
    Specimen D
    (i)housefly
    (ii) grasshopper
    Specimen F
    (i)housefly
    (ii)mosquito

    (2ai)
    Kingdom - animalia
    Class - aves
    (2aii)
    The specific location is the wing
    (2aiii)
    Example of organism - foil
    (2b)
    Tabulate
    Under Specimen H
    (i)presence of inferior umbilicus
    (ii)presence of shaft
    (iii)surface is feathery
    (iv)specimenH is short
    (v)leave sheathbis shorter
    Under Specimen J
    (i)absent of unmbilicus
    (ii)absent of shaft
    (iii)surface is smooth
    (iv)specimen J is longer
    (v)presence of leaves sheath
    2c)
    H - It is used for flying.
    J - it is used for photosynthesis.
    (2di)
    The light weight of the specimen.
    The streamlined structure.
    The smoothness of the vane.
    (2dii)
    Presence of green colouring material(chlorophyll).
    =======
    (4)
    (i) Sex of specimen P – male cockroach
    (ii) there is presence of jointed appendages legs
    (4b)
    P – it can be found in increvices
    A – It can be found in an open field, farm land
    (4bii)
    Adaptation of P
    Possession of antenna for detecting food
    Compound eye for wider view
    Possession of jointed pair of legs
    (4biii) Adaptation of Q
    Possession of Chitinous body cover for protection
    Presence of wings for flight
    Mandibuate mouth part for chewing
    (4c)
    Structural difference between P and Q
    TABULATE:
    SPECIMEN P:
    Dorsa ventrally flattened to allow passage through cracks
    SPECIMEN Q:
    Possesion of chitinous body covers for protection
       
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