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NECO 2020 BIOLOGY PRACTICAL DIAGRAM ANSWERS

Here are clear detailed diagram answers for biology practical.

Specimen ANSWERS

BIOLOGY PRACTICAL SPECIMEN

SPECIMEN A = Yam tuber(Fresh)
SPECIMEN B= Cassava tuber(Fresh)
SPECIMEN C= Quadrat
SPECIMEN D= Insect net
SPECIMEN E= Rain gauge
SPECIMEN F=Rice grain(paddy)
SPECIMEN G= Dry groundnut seeds
SPECIMEN H= contour feather
SPECIMEN I= Quill feather
SPECIMEN J= Filoplume
SPECIMEN K= Millipede
SPECIMEN L= Centipede
SPECIMEN M= Grasshopper
SPECIMEN N= Spider
SPECIMEN O=Larva(Housefly)
SPECIMEN P= Larva(mosquito)
SPECIMEN Q= Flame of the forest flower(Flamboyant)
SPECIMEN R= Hibiscus flower.

NECO-BIOLOGY-PRACTICALS-ANSWERS
(1ai)
Specimen; A is yam tuber
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

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(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

(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; R hibicuss flower

(3aii)
(i)Specimen; M belongs to Insecta
(ii)Specimen; N belongs to Arachnida

(3aiii)
(i)Specimen; N has four pairs of legs (eight total).
(ii)N has also have two additional pairs of appendages.
(iii)Specimen; N do not have antennae or wings.

(3aiv)
Specimen; O is Leftovers foods
Specimen; P is stagnant water

(3bi)
(i)anthers
(ii)filaments

(3bii)
Diagram of specimen Q.

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Completed.

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