SECTION A
[50 marks]
Answer all the questions in this section.
1. Study specimens A and C and answer questions 1 (a) to 1 (e).
(a) Classify specimens A and C based on their life cycle. [2 marks]
(b) State four observable differences between specimens A and C. [4 marks]
(c) State three ways by which the damage to specimen A could have been prevented
[2 marks]
(d) Name the type of germination that would be observed when specimens A and C
are planted. [2 marks]
(e) Place a flat side of specimen C on the tile. Using the razor blade/scalpel/knife
provided, cut through the specimen longitudinally.
(i) Make a drawing, 6 cm to 8 cm long of the cut surface of one half of specimen
C and label fully. [9 marks]
(ii) Add a drop of iodine solution to the cut surface of the other half of specimen
C and record the activity on the table below:
Test Observation Inference
[9 marks]
2. Study specimens D and E and answer questions 2(a) and 2(b).
(a) (i) Name the specific habitats of each of specimens D and E. [2 marks]
(ii) State five observable structural differences between specimens D and E. [5
marks]
(iii) What is the behavioural adaptation that specimens D and E exhibit? [1
marks]
(b) State two ways by which specimen E is of economic importance. [2 marks]
Study specimen G and answer questions 2(c) to 2(e).
(c) On the table below, name the types of teeth present in specimen G and state
one function each of the types of teeth named.
Type of teeth One function
[6 marks]
(d) (i) Name the mode of feeding of the organism from which specimen G was
obtained.
[1 marks]
(ii) State three ways by which specimen G adapts its organism to the mode of
feeding stated in 2(d)(i). [3 marks]
(e) Name two mineral elements which are needed for the proper functioning of
specimen G in the body. [2 marks]
SECTION B
[ 30 marks ]
Answer all the questions in this section.
3. Study specimens H, K, L and M and answer questions 3(a) to 3(f).
(a) State two observable structural differences between:
(i) Specimens H and L;
(ii) Specimens K and M.
[2 marks]
(b) (i) State two ways each by which specimens H and M adapt the organisms
to their modes of life. [4 marks]
(ii) Name two types of food that the organism that possesses specimen H feeds
on.
[2 marks]
(c) Make a drawing, 8 cm to 10 cm long of specimen M and label fully. [9 marks]
(d) Name one habitat of the organism that possesses specimen K. [1 marks]
(e) Name one feeding habit of each of the organisms that possesses specimens H
and L. [2 marks]
WAEC 2022 BIOLOGY PRACTICAL SPECIMEN:
.
GROUP I
Specimen A - Weevil-damaged bean seed
Specimen B - Viable bean seed
Specimen C - Dried maize grain soaked in water overnight
Specimen D - Soldier termite (dead)
Specimen E - Honeybee (dead)
Specimen F - Muddy water (in a test tube)
Specimen G - Lower jaw of a herbivore with teeth intact
.
GROUP II
Specimen H - Head of domestic fowl (complete)
Specimen J - Quill feather
Specimen K - Leg of domestic fowl (complete) Specimen L - Head of duck complete)
Specimen M - Leg of duck (complete)
NOTE: All specimens can be provided as group specimens for five (5) to ten (10) candidates
All specimens in each group must carry individual labels
(eg A, B, C, D, E, F and G in Group I). It is essential that each candidate should be provided
with the following materials:
(i) glass jar cover Petri dish;
(ii) white tiles.
(iii) beaker
(iv) a hand lens/magnifying lens
(v) scalpel/razor blade/knife,
(vi) a pair of forceps
(vii) lodine solution.
