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2026 NECO Biology Practical Specimen
2026 NECO Practical Questions
2026 NECO Biology Practical Answers
NuMBER ONE
(1ai)
A: Pelvic girdle of rabbit/small mammal
B: Cervical vertebra of rabbit/small mammal
C: Caudal vertebra of rabbit/small mammal
D: Transverse section of paw-paw fruit
E: Transverse section of guava fruit
(1aii)
A- Pelvic (hip) region of the body
B- Neck region
C- Tail region
(1aiii)
(i) Ilium
(ii) Ischium
(iii) Pubis
(1aiv)
B:
(PICK ANY TWO)
(i) Has a large vertebral canal.
(ii) Has well-developed transverse processes.
(iii) Has a short neural spine.
(iv) Centrum is relatively broad and large.
(v) Possesses facets for articulation with adjacent vertebrae.
(vi) Bone is thicker and stronger.
(vii) Adapted for supporting and moving the head and neck.
C:
(PICK ANY TWO)
(i) Has a smaller vertebral canal.
(ii) Has reduced or absent transverse processes.
(iii) Has a reduced or absent neural spine.
(iv) Centrum is relatively narrow and elongated.
(v) Articulating facets are reduced.
(vi) Bone is lighter and less robust.
(vii) Adapted mainly for support and movement of the tail.
(1av)
(PICK ANY TWO)
(i) Supports the head.
(ii) Protects the spinal cord.
(iii) Allows movement and flexibility of the neck.
(iv) Provides attachment points for neck muscles and ligaments.
(v) Helps maintain proper posture of the head and neck.
(1bi)
D: Parietal placentation
E: Axile placentation
(1bii)
D:
(PICK ANY ONE)
(i) Seeds are attached to the inner wall of the ovary.
(ii) Ovules arise from the ovary wall.
(iii) The ovary is unilocular (has one chamber).
(iv) There is no central axis bearing the seeds.
E:
(PICK ANY ONE)
(i) Seeds are attached to a central axis within the ovary.
(ii) Ovules are borne on the central placenta.
(iii) The ovary is divided into chambers (locules).
(iv) A distinct central column is present to which the seeds are attached.
(1c)
NUMBER TWO
(2ai)
F: Quill feather
G: Agama lizard
H: Rat/Rabbit
I: Quadrat
J: Sweeping net
(2aii)
(PICK ANY THREE)
(i) Aids flight.
(ii) Provides insulation against heat loss.
(iii) Protects the body from injury.
(iv) Protects the body from adverse weather conditions.
(v) Helps in courtship and mating displays.
(vi) Assists in camouflage and concealment from predators.
(vii) Helps in balancing during flight and landing.
(viii) Gives the bird its body shape and streamlines the body.
(2aiii)
(i) Dry scaly skin that reduces water loss.
(ii) Strong limbs with claws for running and climbing.
(iii) Long tail for balance and movement.
(2aiv)
G: Reptilia
H: Mammalia
(2av)
G:
(PICK ANY TWO)
(i) Body covered with dry scales.
(ii) Has clawed digits.
(iii) No external ears (pinnae).
(iv) Skin is dry and glandless.
(v) Tail is long and prominent.
(vi) Limbs are sprawled sideways.
(vii) Possesses scales instead of fur.
H:
(PICK ANY TWO)
(i) Body covered with hair/fur.
(ii) Digits have nails/claws adapted for digging or grasping.
(iii) Has external ears (pinnae).
(iv) Skin contains sweat and sebaceous glands.
(v) Tail is reduced or covered with fur.
(vi) Limbs are positioned directly beneath the body.
(vii) Possesses fur instead of scales.
(2avi)
(i) Both possess four limbs for locomotion.
(ii) Both have eyes for vision.
(iii) Both possess tails.
(2bi)
I:
(PICK ANY ONE)
(i) Used for estimating population density of organisms.
(ii) Used for determining population distribution.
(iii) Used for estimating species abundance.
(iv) Used for studying plant communities.
(v) Used for ecological sampling in a habitat.
(vi) Used for comparing populations in different habitats.
J:
(PICK ANY ONE)
(i) Used for collecting insects from grasses.
(ii) Used for collecting insects from shrubs.
(iii) Used for sampling insect populations.
(iv) Used for capturing flying insects.
(v) Used for studying insect diversity in a habitat.
(vi) Used for ecological field investigations involving insects.
(2bii)
(i) Throw or place the quadrat randomly within the study area.
(ii) Count all organisms of the species found within the quadrat.
(iii) Repeat the process several times and calculate the average population density or distribution.
NUMBER THREE
(3ai)
K: Housefly
L: Pride of Barbados fruit/pod
M: Cashew nut
N: Millipede
O: Crab
P: Sorghum grain
(3aii)
(i) Possesses sponging mouthparts for sucking liquid food.
(ii) Has sensitive taste receptors on its legs and mouthparts.
(iii) Possesses a proboscis for lapping dissolved food substances.
(3aiii)
(PICK ANY ONE)
(i) Housefly transmits disease-causing organisms such as those responsible for cholera, typhoid and dysentery.
(ii) It contaminates food with pathogens.
(iii) It serves as a vector of disease organisms.
(iv) It promotes decomposition of organic matter.
(v) It serves as food for birds, reptiles and other insectivorous animals.
(vi) It is used in scientific research and biological studies.
(3bi)
K: Insecta
N: Diplopoda
O: Crustacea
(3bii)
K - Human dwellings, refuse dumps and dirty environments.
N - Moist soil, leaf litter and decaying organic matter.
O - Marine and freshwater habitats such as rivers, streams and seas.
(3ci)
L: Legume (pod)
M: Nut
P: Caryopsis (grain)
(3cii)
L - Explosive/self dispersal
M - Animal dispersal
(3ciii)
N:
(PICK ANY TWO)
(i) Body is long and cylindrical.
(ii) Body is divided into many segments.
(iii) Has two pairs of legs on most body segments.
(iv) Possesses one pair of antennae.
(v) Body is not covered by a hard carapace.
(vi) Moves slowly by crawling.
(vii) Eyes are simple and inconspicuous.
O:
(PICK ANY TWO)
(i) Body is short, broad and flattened.
(ii) Body is divided into cephalothorax and abdomen.
(iii) Has five pairs of legs.
(iv) Possesses two pairs of antennae.
(v) Body is covered by a hard carapace.
(vi) Moves sideways relatively faster.
(vii) Eyes are large and borne on stalks.
