2019 WAEC Biology Practical Questions And Answers


1b) Functions👇🏾👇🏾👇🏾


They are used to measure the temperatures of different metals, liquids, gases and other materials.

Specimen B:

Rain gauge are used to measure rainfall.

Specimen C:

It is used to measure length of different objects.

Specimen D:

Sweep nets are used to collect arthropods such as insects from long grass and other types of vegetation.

Specimen E:

It is used to indicate the direction of the wind.




Biology Practical



The branch of biology that involves the use of specimen A, B, C, D, E and F is ecology.

A – It is used for measuring temperature or determining the degree of hotness or coldness of an object/organ/organism
B – For measuring the amount/volume of rainfall in an ecosystem
C -To measure the length, height and width of an object/organsim
D – For collecting insects/creeping/crawling animal.
E – For finding wind direction.
F – To estimate the population of plants in an ecosystem.

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.


Specimen D
(i) Small aquatic organisms eg Amoeba
(ii) Small insects eg mosquito.

Specimen F
(i) Plants specie in a grassland eg spear grass.
(ii) Animal specie in a grassland he grasshopper.

Kingdom – Animalia
Class – Aves

The specific location is the wings.


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.

H – It is used for flying.
J – it is used for photosynthesis.

(i) Sex of specimen P – male cockroach
(ii) there is presence of jointed appendages legs

P – it can be found in increvices
A – It can be found in an open field, farm land

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

Structural difference between P and Q

Dorsa ventrally flattened to allow passage through cracks

Possesion of chitinous body covers for protection


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