2019 Neco Gce Biology Practical Answers

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(1ai)
A – tilapia fish
B – toad
C – bird
D – agama lizard

(1aii)
A – pisces
B – amphibia

(1aiii)
(i) pectoral fin
(ii) tympanium
(iii) hindlimb
(iv) longtail
(v) unwebbed digits
(vi) beak
(vii) eye

(1aiv)
(i) for movement and balance
(ii) for hearing
(iii) movement crawling
(iv) feeding
(v) crawling
(vi) seeing

(1bi)
M- house fly
(ii) n- spider

(ii)
M- insecta
N- insecta

==========================

(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

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(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

(3aii)
J – Man
K – Animal
L – Wind

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

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(3bi)
M – House
N – Spider

(3bii)
M– Class insecta
N– class Arachnida

(3biii)
TABULATE

(M)
– Three pairs of working legs are present

– anterna is present

– the body is divided in to head, thurax and abdomen

(N)
– present of four working legs

– No antenna is N

– the body is divided in to heat and cephalothorax

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