2025 NECO BIOLOGY: 2025 NECO BIOLOGY PRACTICAL Questions and Answers (7547)

(1a)
A; microscope
B; a ripe mango fruit
C; Transverse section of tomato fruit
D; Groundnut 'copied from e x p o c o d e . n e t free' seed
E; maize grains

(1aii)
(i) objective lens
(ii) nose pierce
(iii) aperture

(1aiii)
It is use to magnify object that is to be viewed

(1bi)

(1bii)
Animals

(1biii)
(i)its flesh are eaten by animals
(ii)the seeds are passed out as waste by some animal

(1biv)
Tabulate;
Under B
(i)it is yellowish in colour
(ii)beans like shaped

Under C
(i)it is reddish in colour
(ii)not beans like shaped

(1ci)
Tabulate
Under Observation;
(i)light passes through it but the other side can not be seen

Under Conclusion;
(i)it contains oil which makes the paper a translucent material

(1cii)
Fats and oil

(1ciii)
It serves as food.

(2ai)
F; carrots
G; Irish potato
H; water Lily
I; prawn

(2aii)
It improve sight

(2aiii)
This is because it has a modified stem

(2aiv)
Tabulate
Under Observation;
(i)it gives a blue black colour

Under Conclusion;
(i)starch is present

(2bi)
(i)presence of big leaves
(ii)presence of cuticle
(iii)presence of horns
(iv)presence of rims

(2bii)
Crustacean

(2biii)
(i)presence of tail fin
(ii)presence of scales

(2biv)
Tabulate;
Under External features
(i)Tail fin
(ii) Antenna
(iii)legs/limbs

Under Function;
(i) Locomotion
(ii) sensitivity
(iii) locomotion

(2bv)
(i)it serves as food
(ii)it create employment opportunity

(3a)
J; Tilapia Fish.
K; Tadpoles
L; spider

(3aii)
(i)it both possess operculum
(ii)it both possess eye
(iii)it both possess mouth

(3aiii)
Tabulate
Under J;
(i) present of dorsal fin
(ii) absence of spiracles

Under K;
(i) absence of dorsal fin
(ii) present of spiracles

(3bi)

(3bii)
(i)It has fins that help it swim in water.
(ii)It has gills that help it breath in water.

(3ci)
(i)Head
(ii)Cephalothorax

(3cii)
Arachnida

(3ciii)
(i)presence of wings
(ii)presence of book lung