NECO 2016/2017 Biology Practical Specimen Answers – June/July
Monday 6th june
BIOLOGY PRACTICAL 10:00am-12:00pm
NECO BIOLOGY ANSWERS
1a)
Specimen A-termite
specimen B-bee
specimen C-cricket
Specimen D-pride of barbados(dry pod)
Specimen E-orange fruit
Specimen F-guava fruit
(1aiii)
(i)It possesses three pairs or walking legs
(ii)possession of three body division
(1aiv)
Specimen A
(i)it speeds up decaying process by breaking down of dead trees to form humus which increase soil fertility
(ii)it is source of proteins
Speciemens B
(i)it is use for pollination of flowers
(ii)it is important for production of live honey bee
1v)
1vi)
Central
1vii)
D- Legume
E – Berry
1viii)
-It has pod
-It has succulent endoderm
1ix)
TABULATE
Specimen D:
-No fleshy endoderm
-Has pod
Specimen F:
-Has fleshy endoderm
-No pod
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2a)
G-spider
H-tilapia fish(fresh/freshly preserved)
I-african giant snail
J-irish potato(tuber)
K-sweet potato(tuber)
L-yam (tuber)
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(3ai)
i) A pink colouration is observed
ii) Peotein is present
iii) A brick red precipitate is formed
iv) Carbonhydrate is present
(3aii)
– It builds body tissues and cells
– it prevent body against infections
– It gives energy to the body
– It gives the body ability to maintain temperature
– It allows for blood production
(3aiii )
Polypeptides
(3b)
– A pink colouration is formed
– Hydrolysis
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-SPECIMENS
A-termite
B-bee
C-cricket
D-pride of Barbados(dry pod)
E-orange fruit
F-guava fruit
G-spider
H-tilapia fish(fresh/freshly preserved)
I-african giant snail
J-irish potato(tuber)
K-sweet potato(tuber)
L-yam (tuber)
M-egg (albumen raw)
N-glucose monohydrate(1g)
O-benedict solution(2%)
P-potassium permanganet crystal (1g)
Q-millon’s reagent
R-skull small mammal
S-scapula bone
T-water
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