neco Biology Practical 2021 Answers, Free questions solutions and result for 2021 Biology practical specimen NECO June/July Biology (Agric) (Practical) Questions and Answers for NECO June/July Candidates Free of Charge | NECO June/July Free Biology Practical Specimen Questions and Answers EXPO Room (22nd July, 2021).
N – Cactus plant
O – Water lettuce
P – Soldier termite
N – Dry or arid land (terrestrial)
O – Freshwater swamp (aquatic)
P – Soil or wood
Adaptive features of N (Cactus):
(i)Thick succulent stems for storing water
(ii)Spikes protect cacti from animals
(iii) Thick, waxy skin to reduce loss of water and to reflect heat.
Adoptive features of O (Water lettuce):
(i)Tiny hairs on the roots and leaves helps it to float
(ii)Waxy leaves, which help water run off easily
(iii)Hairy leaves trap air bubbles, making it survive oxygen-deficient mediums.
DIAGRAM OF SPECIMEN P:
(i)Good source of animal protein as food
(ii)Termites drive earthworms from soil that enhance soil fertility
(i)Soldier termites defend the nest from enemies and also protect the workers during food gatherings.
I – Spirogyra
J – Okro fruit
K – Mango fruit
L – Tick
M – Bean weevil
(ii)Green, with cylindrical cell
(i)Dry dehiscent fruit
(iii0dispersal by explosion
(iii)Dispersal by animal
L – Arachnida
M – Insecta
L – Bloodsucking of ticks causes skin irritation
M – Feed on seeds thereby reducing the quality and value of the beans.
DIAGRAM OF SPECIMEN K
(i)Have no wings to fly
(ii)Has no snout
(i)Have wings for flying
(ii)Has an elongated snout
A – Atlas vertebra
B – Thoracic vertebra
C – Scapula
D – Lumber Vertebra
A – Neck
B – Thorax
C – Pectoral girdle
D – Abdomen
(i)Reduced neural spine
(i)Neural spine broad and massive
(ii)Centrum present and well developed
(i)Both B and D have no vertebrarterial canal
(ii)Both have prominent neural spines
DIAGRAM OF SPECIM C:
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 butterflies.
G is dispersed by wind.
(i)Sticky secretion for clinging to submerged vegetation.
(ii)Skin and external gills for respiration
(iii)Tail for swimming.
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2021 NECO Biology Practical Questions & Answers [22nd July, 2021]
(BIOLOGY PRACTICAL – NECO 2021)
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NECO Practical Biology Questions and Answers
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BIOLOGY PRACTICAL SPECIMENS
SPECIMEN A – Atlas vertebra
SPECIMEN B – Thoracic vertebra
SPECIMEN C – Scapula
SPECIMEN D – Lumbar vertebra
SPECIMEN E – Pooter
SPECIMEN F – Sweep net
SPECIMEN G – Tridax fruit
SPECIMEN H – Tad pole
SPECIMEN I – Spirogyra (filaments)
SPECIMEN J – Okro fruit
SPECIMEN K – Mango fruit
SPECIMEN L – Tick
SPECIMEN M – Bean weevil
SPECIMEN N – Cactus plant
SPECIMEN O – Water lettuce
SPECIMEN P – Soldier termite (mandibulate)
Neco Biology Practical answers 2021, NECO 2021 biology practical answers