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2019 Biology Practical Expo | Questions and Answers

2019 NECO GCE BIOLOGY PRACTICAL ANSWERS
================================
(1a)
A – Tilapia fish
B – Frog
C – Lizard
D – Bird

(1aii)
A – Pisces
B – Amphibia

(1aiii)
I – Lateral lines
II – Pectoral fin.
III – Tympanum
IV – Digits
v – Tail
VI – Unwebbed digits.
VII – Beak
VIII – Eye

(1aiv)
II – For movement and balance.
III – For hearing.
IV Movement/crawling.
VI – Crawling.
VII – For Feeding.
VIII – For Seeing

(1av)
Under B
(i) It lives in water and in land.
(ii) It possesses beak.
(iii) Presence of long legs.
(iv) Absence of scales on legs.

Under D
(i) It lives on trees.
(ii) Absence of beak.
(iii) Absence of long legs.
(iv) Presence of scales on long legs
================================
(2ai)
I – Funnel
II – Cotton wool
III – Beaker

(2aiii)
X = 50 – 35 = 15cm²

Y = 50 – 22 = 28cm²

Z = 50 – 15 =35cm²

(2aiii)
X – Sandy soil
Y – Loamy soil
Z – Clay soil

(2aiv)
Ha:
(i) Large soil particles.
(ii) Large pore spaces.

Hb:
(i) Moderate particle size.
(ii) Moderate pore space.

Hc:
(i) Small or fine particle size.
(ii) Little pore spaces.

(2av)
Experiment on water retention capacity of soil.

(2bi)
Lowest – January
Highest – September

(2bii)
(i) June
(ii) July

(2biii)
32 + 32
= 64cm²

(2biv)
(i) Osun
(ii) CrossRiver

(2bv)
Tropical rainforest
================================
(3ai)
J – coconut fruit
K – tomato fruit
L – Oil bean

(3aii)
J – Man
K – Animal
L – Wind

(3aiii)
I – Seed
II – Fibrous mesocarp
III – Seed
IV – Exocarp
V – Fruit stalk
VI – Placenta

(3bi)
M – Housefly.
N – Tick

(3bii)
M – insecta
N – Arachnida.

(3biii)
In a tabular form

Under M
(i) Three pairs of walking legs are present.
(ii) APossession of compound eye
(iii) The body is divided into head, thorax and abdomen.

Under N
(i) Presence of four pairs of walking legs.
(ii) Possession of simple eye
(iii) The body is divided into head and cephalothorax
================================

(4i)
E– Butterfly net
F– thermometer
G– Gas jar

4 (ii)
E –it is used in trapping fishes
F– it is used in measuring temperature
G– it is used in collecting gasses

 

 

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Categories: NECO SSCE GCE 2021 Syllabus Questions

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