Neco 2021 Biology Practical Question & Answer Now Available


A – Atlas Vertebra.
B – Thoracic vertebra.
C – Scapula.
D – Lumber vertebra.

A – Neck
B – Thorax
C – Pectoral girdle.
D – Abdomen

In a tabular form
Under A
1. Reduced Neural spine.
2. Centrum Absent.

Under D
1. Neural spine broad and massive.
2. Centrum present and well developed.

1. Both B and d have no vertebraterial canal.
2. Both have prominent Neural spines.

Draw the diagram []

E – Pooter
F – Sweep net
G – Tridax fruit.
H – Tadpole

E – used for sucking in of tiny invertebrates such as insects from leaves.
F – Used for capturing flying insects such as butterfly.

G is dispersed by wind.

1 – Sticky secretion for clinging to submerged vegetation.
2 – Skin and external gills for respiration.
3 – Tail for swimming.


I – Spirogyra
J – Okro fruit.
K – Mango fruit.
L – Tick
M – Bean weevil.

1. Cup shaped chloroplasts.
2. Green, with cylindrical cells.

In a tabular form
Under J
1. Dry dehiscent fruit
2. Many seeded.
3. Dispersal by explosion.

Under K
1. Succulent fruit.
2. One seeded.
3. Dispersal by animal.

L – Arachnida.
M – Insecta.

L – Blood sucking of ticks causes irritation.
M – Feed on seeds thereby reducing the quality and value of the beans.

Draw the diagram []

In a tabular form
Under L
1. Have no wings to fly.
2. Has no snout.

Under M
1. Have wings for flying.
3. Has an elongated snout


N – Cactus plant.
O – Water lettuce.
P – Soldier termite.

N – Dry or arid land(terrestrial)
O – Fresh water swamp(aquatic)
P – Soil or wood.

1 – Thick succulent stems for storing water.
2 – Spikes protect cast from animals.
3 – Thick, waxy skin to reduce loss of water and to reflect heat.

1 – Tiny hairs on the roots and leaves helps it to float.
2 – Waxy leaves which help water run off easily.
3 – Hairy leaves trap air bubbles, making it survive oxygen deficient mediums.

Draw the diagram []

1 – Good source of animal protein as food
2 – Termites drive earthworms from soil that enchance soil fertility.

Soldier termites defend the nest from enemies and do protect the workers during food gathering.

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