Neco biology practical questions and answers 2021
2021 NECO BIOLOGY PRACTICALS ANSWERS
(1ai)
Specimen; A is yam tuberb
Specimen; B is cassava tuber
Specimen; C is quadrant
Specimen; D is insect net
Specimen; E is rain guage
Specimen; F is rice grain
Specimen; G is dry groundnuts seed
(1aii)
Specimen; A is propagated from small tubers
Specimen; B is propagated by stem
Specimen; F is propagated by seeds
(1aiii)
Specimen; C is used for for study of the distribution of an item over a large area.
Specimen; D is used for prevention against insects
Specimen; E is used to measure the precipitating rain
(1aiv)
Diagram of insect net.
(1bi)
(i)The surface of B turn blue-black
(ii)starch is present
(1bii)
Specimen; F grains (cereals)
Specimen; G puises (legume)
(1biii)
(i)The paper appears translucent
(ii) Specimen; G contain fat and oil or fat and oil is present in specimen G
(1biv)
Fat and oil
(2ai)
Specimen; H is contour feather
Specimen; I is quill feather
Specimen; J is Filoplume
Specimen; K is millipede
Specimen; L is centipede
(2aii)
(i)They provide insulation to birds
(ii)Feathers allow for flight
(iii)Feathers are used for defense
(iv)Feathers are used for camouflage
(2aiii)
(i)Wings
(ii)Tail
(2bi)
Diagram of specimen I.
(2bii)
(i)Specimen; H serve as aerodynamic
devices for flight
(ii)Specimen; J are used principally as insulation, to conserve body heat.
(2biii)
Specimen; K belong to the class Diplopoda
Specimen; L belong to the class Chilopoda.
(2biv)
In tabular form
-Specimen; K-
(i)millipedes are more rounded.
(ii)Millipedes have two sets of legs per segment positioned directly under their body.
-Specimen; L-
(i)centipedes have a flatter body
neco biology practical – (ii)Centipedes have one set of legs per segment positioned on the side of their body.
(3ai)
Specimen; M is Grasshopper
Specimen; N is spider
Specimen; O is Larva (house fly)
Specimen; P is Larva ( mosquito)
Specimen; Q Flame of The forest flower
Specimen;
Neco 2021 Practical Specimens
Here are the specimens of biology practical for neco 2021 exam
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 – neco biology practical specimen 2021
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)
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