WAEC Biology Practical Questions and Answers 2021 (100%) Legit Free Theory and Objective

WAEC Biology Practical Questions and Answers 2021, (100%) Legit Free WAEC Biology Practical 2021 specimen answers (Expo) for West African Examinations Council (May/June) 2021. WAEC Biology Practical answers For you to have good WAEC result in Biology Practical examination as well as repeated questions for free in this post. You will also understand how WAEC (Biology) Biology Practical questions are set and how to answer them. The West African Examinations Council (WAEC) is an examination board established by law to determine the examinations required in the public interest in the English-speaking West African countries, to conduct the examinations and to award certificates comparable to those of equivalent examining authorities internationally.

Recommended: WAEC Timetable 2021 (Final & Official WASSCE) WAEC 2021 Timetable

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2021 WAEC Biology Practical Specimen

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WAEC Biology Practical Questions and Answers 2021

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BIOLOGY PRACTICAL

 BIOLOGY PRACTICAL ANSWERS
(2a)
PLEASE TABULATE
= D
-Two observation-
(i) Gives greenish leaves
(ii) Gives a growing seedlings
-Results-
Positive growth
= E
-Two observation-
(i) No growth observed
(ii) Wet soil
-Results-
Negative growth
= F
-Two observation-
(i) No growth observed
(ii) Dey soil
-Results-
Negative growth
= G
-Two observation-
(i) No growth observed
(ii) Extremely dry soil
-Results-
Negative growth
(2bi)
E – Excess water
F – Depletion of soil nutrient
G – Absence of water or soil moisture
(2bii)
(i) Well ventilated soil
(ii) Good and rich in nutrient soil
(1ai)
A – Neck
B – Chest
C – Upper abdominal region of the body
(1aii)
A – It aids the odontoid process of the head
B – It aid the attachment of ribs
C – It bears majority of body weight
(1bi)
(1bii)
(i) Neural canal; It allows the passage of the spinal cord
(ii) Centrum; It is a solid piece of bone found below the neural canal
(iii) Transverse process; It aids the attachment of muscle and ligaments
(iv) Neural spine; The aids the attachment of muscles
(1ci)
A – 7
B – 12
C – 6
(1cii)
(i)Sacral vertebrae
(ii) Caudale vertebrae
[17/09, 10:24] Ogabido: (4ai)
Phylum
L – Arthropoda
M – Arthropoda
(ii)
Class
L – Insecta
M – Insecta
(4bi)
(i)They have an exoskeleton or a hard, shell-like covering on the outside of its body.
(ii)Insects have three main body parts: head, thorax, and abdomen.
(iii)Insects have a pair of antennae on top of their heads.
(4bii)
(i)myriapods
(ii)arachnids
(iii)crustaceans
(4ci)
L
(i)moveable head
(ii)stagnant water
M
(i)oversized compound eyes
(ii)grasslands
(4cii)
(i)Controlled by Mosquito Traps
(ii)Controlled by Space sprays
(iii)Controlled by Mechanical Barriers
(iv)Controlled by
Vegetation Management.
(v)Controlled by outdoor measures.
(4d)
TABULATE PLS
– H (ADULT MOSQUITO)
(i) Smaller in size
(ii) A Pair of wings
(iii) Absence of hard hind wings
(iv) Absence of maxillary palp/maxilla
(iv) Absence of spines on legs
– M(BUTTERFLY)
(i) Big in size
(ii) Two pairs of wings
(iii) Presence of hard hind wings
(iv) Presence of maxillary palp/maxilla
(v) Presence of spines on legs

WAEC Biology Practical  Answers 2021(Expo)

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