2024 NECO GCE BIOLOGY: 2024 NECO GCE BIOLOGY PRACTICAL ANSWERS (1832)

(1ai)
A - Toad
B - Tilapia Fish
C - Bird

(1aii)
II - Parotid gland
III - Toes
V - Caudal fin
VI - Operculum

(1aiii)
VI - Beak: helps them in gathering,catching,eating food also for feeding and protecting their young ones
VIII - Ear covert: It protects the ear

(1aiv)
A - Amphibia
B - Pisces
C - Aves

(1av)
TABULATE
=A=
(i) Not entirely aquatic, but most of the larval stages live in water and move to land
(ii) Respiration takes place through lungs mainly.
(iii) Metamorphosis is common

=B=
(i) Entirely aquatic
(ii) Respiration mainly through gills, except lungfishes
(iii) Metamorphosis is very rare

(1avi)
Fresh water

(1bi)
I - Bell jar
II - Polythene bag
III - Potted plant
IV - Water droplets

(1bii)
II - It prevents the output of respiration by soil organisms
III - To produce droplets of liquid

(1biii)
To show that transpiration do not occur in dead plants

(1biv)
(i) Cooling effect
(ii) Translocation of mineral salts
(iii) Good growth of the plant

(1bv)
Experiment to show that carbon (IV) oxide is necessary for photosynthesis

(1bvi)
(i) Prevent leakage of air into and out of the Bell jar by inverting it over a glass sheet
(ii) Properly fit the rubber sheet

(2ai)
F - Simple leaf
G - Flower

(2aii)
II - Leaf
III - Reticulate venation
IV - Leaf stalk
VI - Lamina

(2aiii)
Stamen
1---> VIII (Anther) 2---> IX (Filament)

Carpel
1---> VII (Stigma) 2---> X (Style) 3---> XII (Ovary)

(2aiv)
F - For photosynthesis
G - For reproduction

(2bi)
H - Skull of a dog

(2bii)
H - Dentition in carnivores

(2biii)
I - Skull
II - Carnassials
IV - Incisors
V - Canines

(2biv)
I - protection of skull
II - For cutting large pieces of meat, breaking, grinding, and chewing of bones and tendons.
IV - Used for cutting flesh from bones.
V - Used for killing prey and tearing flesh from bones.

(2bv)
(i) Hyena
(ii) Lion

(3ai)
A longitudinal section of a tomato fruit

(3aii)
I - Exocarp
II - Locular cavity
III - Seeds
IV - Sepal
V - Pendicel

(3aiii)
Axile placentation

(3aiv)
(i) It serves as a source Of rich minerals
(ii) It attracts foreign exchange earnings when processed
(iii) It goes with other raw materials during processing and packaging, increases their demands

(3bi)
J - Hinge Joint
K - Structure of a ball and socket joint
L - Gill

(3bii)
I - Ligament
II - Patella
IV - Bone
VII - Gill filament
VIII - Gill racker

(3biii)
I - It holds the together
V - It reduces friction
VI -

(3biv)
K - Shoulder
L - Head of a fish

(3bv)
(i) Possession of gill rackers
(ii) Possession of filaments