WAEC 2019 Biology Practical Solution Answer – May/June Expo

WAEC Biology Practical Solution Questions and Answer – MAY/JUNE 2019 Expo Runz.

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(4ai) 
Sex of specimen P is Male
(4aii) 
The wings of male cockroach are larger than that of the females and extend beyond the abdomen.

(4bi) 
Habitats 
P - It can be found in dark place. 
Q - It can be found in farm lands. 
(4bii)
Adaptation of P
(i) Possession of antenna for detecting food. 
(ii) Compound eye for wider view. 
(iii) Possession of jointed pair of legs. 

Adaptation of Q
(i) Possession of chitinous body cover for protection. 
(ii) Presence of wings for flight. 
(iii) Mandibular mouth part for chewing. 

(4c) 
In a tabular form: 
Specimen P
Dorso-ventrally flattened to allow passage through cracks. 

Specimen Q 
Possession of chitinous body cover for protection.
(4cii)
(i) Both have antenae
(ii) Both possesses flying wings
(iii) Both have chewing mouth parts

(4di)
Biting and chewing
(4dii)
Grass or leaves

(4e)
CLICK HERE FOR THE IMAGE

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(2ai) 
Kingdom - Animalia
Class - Aves
(2aii) 
The specific location is the wings.
(2aiii)
Fowl

(2b) 
In a tabular form 
Under Specimen H
-Light brownish in colour 
-Obtained from animal. 
-The barbs are joined. 
-The shaft is made of cuticle. 
-It acts as an organ of insertion. 
-specimen is soft and fluffy. 

Specimen J
-Green in colour. 
-Obtained from a plant. 
-Each leaf is separate from one another. 
-The shaft is made of wood. 
-Acts as an organ of photosynthesis. 
-Specimen is hard. 
(2bii)
(i) Both have shaft
(ii) Both have vane
(iii) Both have rachis
(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).
Its position on the body of the plant.

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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 ab organism 
D- for collecting insect/creeping and crawling animal
E - for finding wind direction
F - To establish population of plants in an ecosystem

(1c)
B - The specimen is stationed above ground on an open space. After rainfall, the volume of water found in the glass bottle is measured with a cylinder as the volume of rainfall 
D - The net is skimmed on the water surface so as to collect the desired specimen

(1d)
CLICK HERE FOR THE IMAGE

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

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