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Author Topic: CORRECT: 2019/2020 WAEC BIOLOGY PRACTICAL Questions And Answer Expo/Runs free  (Read 396 times)

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Offline JEFFREY96

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(1ai)
SPECIMEN A - Bean seedlings
SPECIMEN B - Maize seedlings
SPECIMEN C - Coconut fruit
SPECIMEN D - Tridax fruit
SPECIMEN E - Frog
SPECIMEN F - Praying Mantis

(1aii)
A - Epigeal germination
B - Hypogeal germination

(1aiii)
A - The cotyledons are brought above the ground due to rapid elongation of hypocotyl
B - The cotyledons remain below the soil during germination

(1bi)
C - Water
D - Wind

(1bii)
C - Drupe
D - Cypsela

(1ci)
Drawing of Frog

(1cii)
Hindlimbs are longer than their forelimbs

(1ciii)
(i) Providing body support during sitting or walking
(ii) Pushing the body during jumps

(1d)
Specimen F
(i) Presence of two antennae
(ii) Presence of six legs

Specimen G
(i) Absence of antennae
(ii) Presence of four legs

(1a)
SPECIMEN A: Bean seedlings (less than seven days old)
SPECIMEN B: Maize seedlings (less than seven days old)
SPECIMEN C: Coconut fruit (dry with husk)
SPECIMEN D: Tridax fruit
SPECIMEN E: Frog/Toad
SPECIMEN F: Praying Mantis


=====

(2ai)
SPECIMEN G - Lizard
SPECIMEN H - Snail
SPECIMEN I - Grasshopper
SPECIMEN J - Cockroach
SPECIMEN K - Orange
SPECIMEN L - Mosquito

(2aii)
Specimen G - Reptilia
specimen H - Gastropoda
Specimen I - Insecta

(2bi)
Malaria

(2bii)
(i)use of insecticide
(ii)use of mosquito net
(iii)cleanliness of the environment

(2biii)
(i)The neck is short
(ii)The tail is long and tapers at the end

(2c)
DRAW THE DORSAL VIEW OF A COCKROACH
==============

3aii)
p…..used in meteorological science to measure the humidity, or amount of water vapour in the air.

Q… Used for measuring temperature

R…. Used for catching fish or used for hunting for fish in the river.
   
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    Offline JEFFREY96

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    (3ai)
    Specimen M - Measuring cylinder
    Specimen N - Loamy soil
    Specimen O - Earthworm
    Specimen P - Hygrometer
    Specimen Q - Thermometer
    Specimen R - Hand net

    (3aii)
    Specimen P - It is used in meteorological science to measure the humidity, or amount of water vapour in the air.

    Specimen Q - Used for measuring temperature

    Specimen R - It is Used to capture fishes from the pond

    (3aiii)
    (i) They improve the soil structure
    (ii) They help to improve the fertility and nutrient content and availability in the soil
    (iii) Earthworms improve soil drainage

    (3bi)
    (i) The soil sample settled below the water level
    (ii) The water above the soil sample increase as soil goes down
    (iii) The water above the soil sample get clearer

    (3bii)
    Draw The Diagram
       
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    Offline JohnpaulB

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