XCITYNIGERIA
2018 WAEC BIOLOGY PRACTICAL/SPECIMENS QUESTIONS AND ANSWERS

IF YOU WANT YOUR RESULT TO BE LIKE ABOVE RESULT. YOU BETTER START SUBSCRIBING FOR YOUR EXAM FROM XCITY GROUPS OF SCHOOLS.
SEE WHAT OUR SUBSCRIBERS ENJOY BELLOW.
2018 WAEC SSCE ALTERNATIVE TO BIOLOGY PRACTICAL ANSWERS.
*WAEC 2018 BIOLOGY PRACTICAL ANSWERS*
(1ai)
A - Stagnant water (aquatic habitat)
B - Decomposing matter(terrestrial habitat)
(1aii)
A- Mosquito(Anopheles).
B- Housefly.
(1aiii)
A - Arthropoda (phylum)
Insecta (class)
B - Arthropoda (phylum)
Insecta (class)
(1b)
Specimen A
(i) It has bristles.
(ii) It has horny jaw.
(iii) It has siphon
Specimen B
(i) It has a hook.
(ii) It has mouth.
(iii) It has spiracles.
(1ci)
In a tabular form
Under A
(i) It has not got a hook
(ii) It has a bristle.
(iii) It has siphon
(iv) It has mouth brush.
Under B
(i) It has a hook
(ii) It doesn't have a bristle.
(iii) It does not have siphon.
(iv) It does not have mouth brush.
(1cii)
(i) They are both segmented organisms.
(ii) They both have mouth.
(iii) Both have thorax
--------------------------
(2ai)
C - Fish
D - Mammal
E - Flowering plant
(2aii)
They are used for respiration.
(2aiii)
(i) Possession of two rows of fine finger like Gill filament.
(ii) Possession of gill rakers.
(iii) Possession of richly supplied blood capillaries.
(2bi)
(i) Both are supplied with blood capillaries.
(ii) Both of them are used for respiration.
(2bii)
In a tabular form; Specimen C and specimen D
Under specimen C
(i) Possession of gill rakers.
(ii) Possession of gill filament.
(iii) Possession of gill arch.
Under specimen D
(i) Possession of bronchus.
(ii) Possession of alveoli.
(iii) Possession of alveolar cavity.
(2c)
Draw the 6cm-8cm long of specimen C ie Gill of fish

Or
2a)
i)C- Tilapia fish
D- Rat
E- Mango plant
ii)Excretion
iii)
(a)Presence of gill filament which helps in gaseous exchange
(b)Presence of gill rakers which traps particles that might damage the delicate gill filament
©Gill arch which is bony and holds the gulls filament in shape
2b)
i)• Both have thin surface
ii)• Both are moist
2bii)
Tabulate
Under C
(a)Gill arch is present
(b)Gill filament is present
©Gill rackers is present
Under D
(a)Gill arch is absent
(b)Gill filament is absent
©Gill rackers is absent
----------------------------
(4)
(ai) Sepals, Petals, Carpels and Stamens
(ii) Sepals - 5
(iii) Petals - 5
(iv) Carpels - 1
(v) Stamen - 10
(4bi) Sex - monoecious
(ii) presence of both Carpels and Stamens
(4c)
i - Bilateral
ii - it can be cut vertically into two similar halves through one plane
(4d)
K - insect
L - wind
(4e)
In a tabular form; K and L
Under K
(i) Has very bright colours.
(ii) Single flower per stalk.
(iii) Has petals.
(iv) Lacks bracts.
Under L
(i) Lacks bright colours.
(ii) Bears many flowers per stalk(influorescence).
(iii) Lacks petals.
(iv) Has bracts.

.
-
08149838594
xcitynigeria@gmail.com
