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Author Topic: NECO 2022 BIOLOGY ANSWERS (PRACTICAL)  (Read 331 times)

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Offline MANDINHO

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NECO 2022 BIOLOGY ANSWERS (PRACTICAL)
« on: July 18, 2022, 04:17:15 pm »
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Offline MANDINHO

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Re: NECO 2022 BIOLOGY ANSWERS (PRACTICAL)
« Reply #1 on: July 18, 2022, 07:32:16 pm »
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Offline MANDINHO

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Re: NECO 2022 BIOLOGY ANSWERS (PRACTICAL)
« Reply #2 on: July 18, 2022, 07:35:53 pm »
Biology Practical Instructions to School

1. The information contained here is highly confidential. Therefore, efforts should be made to avoid candidates getting to know of this either directly or indirectly before the examination.

2. Each candidate should bring to the examination hall laboratory:
(a) sharpened pencil (HB)
(b) an eraser
(c) a ruler
(d) a sharp razor blade or scalpel or knife

3. The school should provide the following for the candidates:
(i) Iodine solution
(ii) Dropper
(iii) Million's reagent

4. Candidates should be provided with the following specimens during the examination:

A - MICROSCOPE
B - A RIPE MANGO FRUIT
C - TRANSVERSE SECTION OF TOMATO FRUIT
D - GROUNDNUT SEED (FRIED/DRIED)
E - MAIZE GRAIN
F - CARROT
G - IRISH POTATO (RAW)
H - WATER LILY
I - PRAWN
J - TILAPIA FISH
K - TADPOLE (8 - 9 WEEKS OLD)
L - SPIDER

5. If it is not possible to provide each candidate with all the specimens and apparatus, a set of the specimens can be provided for groups of not more than ten (10) candidates.

TEACHER'S REPORT

(i) This report proforma should be released to the teacher who will set up the practicals for the candidates on the day of the examination.

(ii) A completed teacher's report form must be enclosed in each envelope of scripts being returned to the Council.

(iii) On the report form, the teacher is requested to:
(a) Supply all necessary information with regard to the type of specimens provided.
(b) Report any general difficulty regarding the procurement of the specimen
(c) Report any particular problem experienced by any candidate during the examination.

Offline MANDINHO

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Re: NECO 2022 BIOLOGY ANSWERS (PRACTICAL)
« Reply #3 on: July 19, 2022, 11:03:25 am »
BIOLOGY PRACTICAL ANSWERS


(1a)
A; microscope
B; a ripe mango fruit
C; Transverse section of tomato fruit
D; Groundnut seed
E; maize grains

(1aii)
(i) objective lens
(ii) nose pierce
(iii) aperture

(1aiii)
It is use to magnify object that is to be viewed

(1bi)


(1bii)
Animals

(1biii)
(i)its flesh are eaten by animals
(ii)the seeds are passed out as waste by some animal

(1biv)
TABULATE

=SPECIMEN B=
(i)it is yellowish in colour
(ii)beans like shaped

=SPECIMEN C=
(i)it is reddish in colour
(ii)not beans like shaped

(1ci)
TABULATE

=Observation=
(i)light passes through it but the other side can not be seen

=Conclusion=
(i)it contains oil which makes the paper a translucent material

(1cii)
Fats and oil

(1ciii)
It serves as food.
==============================

(2ai)
F; carrots
G; Irish potato
H; water Lily
I; prawn

(2aii)
It improve sight

(2aiii)
This is because it has a modified stem

(2aiv)
TABULATE

=Observation=
(i)it gives a blue black colour

=Conclusion=
(i)starch is present

(2bi)
(i)presence of big leaves
(ii)presence of cuticle
(iii)presence of horns
(iv)presence of rims

(2bii)
Crustacean

(2biii)
(i)presence of tail fin
(ii)presence of scales

(2biv)
TABULATE

 =External features=
(i)Tail fin
(ii) Antenna
(iii)legs/limbs

=Function=
(i) Locomotion
(ii) sensitivity
(iii) locomotion

(2bv)
(i)it serves as food
(ii)it create employment opportunity
==============================

(3a)
J; Tilapia Fish.
K; Tadpoles
L; spider

(3aii)
(i)it both possess operculum
(ii)it both possess eye
(iii)it both possess mouth

(3aiii)
Tabulate
Under J;
(i) present of dorsal fin
(ii) absence of spiracles

Under K;
(i) absence of dorsal fin
(ii) present of spiracles

(3bi)


(3bii)
(i)It has fins that help it swim in water.
(ii)It has gills that help it breath in water.

(3ci)
(i)Head
(ii)Cephalothorax

(3cii)
Arachnida

(3ciii)
(i)presence of wings
(ii)presence of book lung
==============================

COMPLETED

 

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