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(4ai)
S*x 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
(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.
(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

Past WAEC Biology Practical Answers

4ai)
phylum Annelida
4aii)
-Body is elongated and vermiform
-It has segmented body
4aiii)
Underground
4bi)
-Their streamlined shape allows them to burrow through soil
-They have no skeletons or other rigid structures to interfere with their movement
4bii)
-they improve the fertility of soil in different ways.and therefore they are important in agriculture
-they also reduced the the alkalinity and acidity of the soil to provide better conditions for plant growth
– they are used for bait and food as bait they used it in catching fish
4c)
DIAGRAM
4d)
S – Drupe
T – Berry
4e)
Tabulate:
Specimen S|Specimen T
-The seed is not many|-The seeds are many
-It has seed chamber|-It does not have seed chamber
-It has oval shape|-It has a spherical shape
-It has no sepal attached|-It has sepal attached
4e)
-They both have succulent mesocarp
-They both have thin epicarp
-They both have seeds
-They both have endocarp

1ai)
Arthropoda
1aii)
-They have segemented bodies
-Their bodies are divided into head,thorax and abdomen
-They have exoskeleton
1bi)
TABULATE
Specimen C|Specimen D
-It has wings|It does not have wings
-It has jointed legs|It does not have jointed legs
-It does not have clasper|It has clasper
1bii)
TABULATE
Specimenc C|Specimen E
-The antennae are not segemented|The antennae are segemented
-The eyes are smaller|The eyes are bigger
-It has labial palps|It does not have labial palps
1c)
They are both insects
1di)
Leaf of a plant
1dii)
-Posession of spiracle for breathing
-Posession of hooks for attachment
1e)
DIAGRAM

2ai)
-It has venation leaves
-It is pink in color
-It has lateral leaves
2aii)
G – Irish potato
-It has dormant bud
-It has vascular ring
-It has periderm skin
-It has medulla
2bi)
F – Root tuber
G – Root tuber
2bii)
Specimen F
-They store their food in the root
-They are harvested through the root
Specimen G:
-It has some bud on its surface
-it is a swollen end of of a special underground plant
2c)
H – Class is Insecta
J – Class is insecta
TABULATE
Specimen H|Specimen J
-it has proboscis|-It has Labrirum
-it is smaller than J|-It is Larger
-it feed on blood|-it feed on abandon food
-it has no color|-it is dark brown
2dii)
-They both have wing
-They are both active in the night
-They both breadth with aid of trachea system
-The body is divided into head thorax & abdomen
2ei)
H – as proboscis for sacking blood
J – It as Labrirum for bitting & chewing
2eii)
-has a pair of antenna for preserving food
-Has a bitting& chewing mouth part.