NECO 2020 BIOLOGY PRACTICAL QUESTIONS AND ANSWERS

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Paper I: Practical – Biology
10:00am – 12:00noon

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(1ai)
A = Yam Tuber (fresh)
B = Cassava Tuber (fresh)
C = Quadrat
D = Insect net
E = Rain gauge
F = Rice grain (paddy)
G = Dry groundnut seeds

(1aii)
A = Yam Tuber is propagated by Yam setts, Yam seeds or Yam minisetts
B = Cassava tuber is propagated by stem cuttings
F = Rice grain is propagated by seed

(1aiii)
C = It is used to determine the population of small organisms/small plants/crawling insects.
D = It is used to collect flying insects/any correctly named Insect.
E = It is used to measure amount of rain/rainfall/precipitation.

(1aiv)
8-10cm well labeled Diagram of Insect set:
CLICK HERE FOR THE IMAGE

(1bi)
(1) = The surface of B turn blue black
(2) = Starch is present

(1bii)
F = Grains(cereals)
G = pulses(legume)

(1biii)
(i) The paper appears translucent
(ii) Fat and oil is present in G

(1biv)
Fat and oil
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(2ai)
H – Contour feather
I – Quill feather
J – Filoplume
K – Millipede
L – Centipede

(2aii)
(i) They protect birds from the cold
(ii) They used for flight
(iii) They provide insulation to birds
(iv) They serve as waterproof to birds

(2aiii)
(i) Wings
(ii) Tail

(2bi)
Diagram of specimen I:
CLICK HERE FOR THE IMAGE

(2bii)
(i) H – It aids in thermoregulation
(ii) J – It helps birds in detecting changes in feather position caused by body movement or wind

(2biii)
K – Diplopoda
L – Chilopoda.

(2biv)
In tabular form
Specimen K:
(i) They are more rounded.
(ii) They have two sets of legs per segment positioned directly under their body.

Specimen L:
(i) They have a flatter body
(ii) They have one set of legs per segment positioned on the side of their body.
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(3ai)
M – Grasshopper
N – spider
O – Larva of a house fly
P – Larva of a mosquito
Q – Flamboyant flower
R – Hibiscus flower

(3aii)
(i) M – Insecta
(ii) N – Arachnida

(3aiii)
(i) Specimen N has four pairs of legs.
(ii) It has two additional pairs of appendages.
(iii) Specimen N does not have antennae or wings.

(3aiv)
O – Decayng matter
P – stagnant water

(3bi)
(i) Anthers
(ii) Filaments

(3bii)
Diagram of specimen Q:
CLICK HERE FOR THE IMAGE


COMPLETED – GOODLUCK

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2020 NECO EXPO BIOLOGY (PRACTICAL) QUESTIONS AND ANSWERS
2020 NECO EXPO BIOLOGY (PRACTICAL) QUESTIONS AND ANSWERS
2020 NECO EXPO BIOLOGY (PRACTICAL) QUESTIONS AND ANSWERS
2020 NECO EXPO BIOLOGY (PRACTICAL) QUESTIONS AND ANSWERS
2020 NECO EXPO BIOLOGY (PRACTICAL) QUESTIONS AND ANSWERS

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