NECO Biology Practical Specimens 2025

Are you writing the upcoming 2025 NECO exam and searching for the neco biology practical specimens 2025? If yes, congratulations for been here as we have shared it with you in this page.

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.

Each candidate should be instructed to bring to the examination hall/laboratory:

• Sharpened drawing pencil (HB)
• An eraser
• A ruler

Candidates should be provided with the following:

• A sharp razor blade or scalpel
• Petri-dish
• Hand lens

NECO Biology Practical Specimens 2025

Specimen	Name	Type
A	Housefly	Insect
B	Spider	Arachnid
C	Pride of Barbados Flower	Plant (Flower)
D	Bean seed	Plant (Seed)
E	Butterfly	Insect
F	Crayfish	Crustacean
G	Grasshopper	Insect
H	Humerus of a Rabbit	Bone (Forelimb)
I	Femur of a Rabbit	Bone (Hindlimb)
J	Orange Fruit	Plant (Fruit)
K	Honey Bee	Insect
L	Land Snail	Mollusk
M	Guava Fruit	Plant (Fruit)
N	Irish Potato tuber	Plant (Modified stem)
O	Sweet Potato tuber	Plant (Modified root)

 

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NECO Biology Practical Answers 2025

(1ai)
A: Housefly
B: Spider
C: Pride of Barbados Flower
D: Bean seed
E: Butterfly

(1aii)
A: Insecta
B: Arachnida

(1bi)
(PICK ANY TWO)
(i) Cholera
(ii) Typhoid
(iii) Dysentery
(iv) Salmonellosis
(v) Tuberculosis
(vi) Diarrhoea

(1bii)
(PICK ANY TWO)
(i) Sticky legs with hairy structures for picking up pathogens
(ii) Sponging mouthparts used for feeding on waste and faeces
(iii) Ability to fly long distances, spreading pathogens widely
(iv) Compound eyes for detecting food and breeding areas
(v) Small body size for easy access to contaminated places

(1biii)
A: Housefly
(PICK ANY TWO)
(i) Has 3 pairs of legs (6 legs in total)
(ii) Has one pair of compound eyes
(iii) Has two wings for flying
(iv) Antennae are present
(v) Body divided into head, thorax, and abdomen
(vi) Has sponging mouthparts

B: Spider
(PICK ANY TWO)
(i) Has 4 pairs of legs (8 legs in total)
(ii) Has multiple simple eyes
(iii) No wings, cannot fly
(iv) Antennae are absent
(v) Body divided into cephalothorax and abdomen
(vi) Has piercing or biting mouthparts (chelicerae)

(1ci)
Draw the diagram

(1cii)
Insecta

(1ciii)
(i) Two pairs of broad, colorful wings
(ii) Antennae
(iii) Compound eyes
(iv) Three pairs of legs

(1civ)
Pollination

(1cv)
(PICK ANY TWO)
(i) Long proboscis for sucking nectar from deep flower tubes
(ii) Colorful wings that attract flowers and aid in pollination
(iii) Compound eyes to easily locate flowers
(iv) Lightweight body for easy flight and flower-to-flower movement
(v) Legs with sensory receptors to detect nectar and floral chemicals.

==========

(2ai)
F: Crayfish
G: Grasshopper
H: Humerus of a Rabbit
I: Femur of a Rabbit
J: Orange Fruit

(2aii)
F: Crustacea
G: Insecta

(2aiii)
(i) It serves as a source of protein-rich food for humans.
(ii) It can be exported to generate foreign exchange.
(iii) It is used in biological research and laboratory studies.
(iv) It serves as bait in fishing.
(v) It contributes to the aquatic food chain as both predator and prey.
(vi) It creates employment through crayfish farming and marketing.

(2aiv)
F: Crayfish
(PICK ANY TWO)
(i) Has two pairs of antennae
(ii) Has gills for respiration
(iii) Body is divided into cephalothorax and abdomen
(iv) Lives in aquatic environment
(v) Has pincers (chelate legs)
(vi) Exoskeleton is hard and calcified

G: Grasshopper
(PICK ANY TWO)
(i) Has one pair of antennae
(ii) Has spiracles and trachea for respiration
(iii) Body is divided into head, thorax and abdomen
(iv) Lives in terrestrial environment
(v) Has jumping hind legs
(vi) Exoskeleton is less calcified and more flexible

(2bi)
H: Located in the upper forelimb of the rabbit
I: Located in the upper hindlimb of the rabbit

(2bii)
(i) Scapula
(ii) Radius
(iii) Ulna

(2c)
Draw the diagram

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

(3ai)
K: Honey Bee
L: Land Snail
M: Guava Fruit
N: Irish Potato tuber
O: Sweet Potato tuber

(3aii)
Draw the diagram below

(3bi)
K: Insecta
L: Gastropoda

(3bii)
(PICK ANY FOUR)
(i) It has a coiled shell on its back.
(ii) It has a moist, slimy body covered in mucus.
(iii) It possesses a muscular foot for locomotion.
(iv) It has tentacles on its head.
(v) Eyes are located at the tips of the longer tentacles.
(vi) It has a soft and unsegmented body.
(vii) The body shows bilateral symmetry.
(viii) The shell provides protection from predators and harsh environments.

(3biii)
K: Honey Bee
(PICK ANY ONE)
(i) Production of honey for human consumption
(ii) Pollination of crops, enhancing agricultural productivity
(iii) Production of beeswax used in candles, cosmetics, and polishes
(iv) Used in apiculture (beekeeping) for commercial purposes
(v) Source of royal jelly and propolis used in medicine and cosmetics

L: Land Snail
(PICK ANY ONE)
(i) Source of animal protein for human consumption
(ii) Used in biological and scientific research
(iii) Shells can be used as calcium supplements or in local crafts
(iv) Acts as a decomposer, aiding soil nutrient recycling
(v) Used in traditional medicine in some cultures

(3biv)
Axile placentation observed

(3ci)
N: Stem tuber
O: Root tuber

(3cii)
Vegetative propagation

NECO Practical Biology 2025 Possible Questions And Answers

QUESTION 1:

Study Specimens A, B, E, G, and K carefully and answer the following questions:

1(a) Identify Specimens A, B, E, G, and K by their common names.

A – Housefly

B – Spider

E – Butterfly

G – Grasshopper

K – Honeybee

1(b) Classify each of the specimens into their respective phylum and class.

Specimen	Phylum	Class
A (Housefly)	Arthropoda	Insecta
B (Spider)	Arthropoda	Arachnida
E (Butterfly)	Arthropoda	Insecta
G (Grasshopper)	Arthropoda	Insecta
K (Honeybee)	Arthropoda	Insecta

(c) State two features common to all the specimens above.

1. All have jointed appendages.

2. All have exoskeletons made of chitin.

(d) List one adaptive feature of Specimen B and explain its function.

Feature: Spinnerets

Function: Used to produce silk for building webs and capturing prey

(e) Mention one economic importance of any two of the specimens.

Specimen A (Housefly): Spreads diseases like cholera and typhoid

Specimen K (Honeybee): Aids in pollination and honey production

QUESTION 2:

Observe Specimens C, D, J, M, N, and O and answer the following:

(a) Identify Specimens C, D, J, M, N, and O.
(b) State the reproductive structure in each of Specimens D, J, M.
(c) Group Specimens D, N, and O based on their type of plant storage organ.
(d) Mention two differences between Specimen N and Specimen O.
(e) State one use each of Specimens J and M in human diet.

QUESTION 3:

Specimens H and I are parts of a rabbit skeleton. Study them and answer:

(a) Identify Specimens H and I.
(b) State the part of the body each bone is found.
(c) Mention one function of each specimen.
(d) State one observable difference between Specimens H and I.
(e) What type of joint connects Specimen H to the rest of the forelimb?

QUESTION 4:

Study Specimens A, E, F, G, and L. Answer the questions below:

(a) Classify each specimen into its correct phylum and class.
(b) State one mode of locomotion for each of the specimens.
(c) Which of the specimens is a mollusc? State two features to justify your answer.
(d) Mention two structural adaptations of Specimen F for movement.
(e) State one way in which Specimen G is more adapted to life on land than Specimen F.

QUESTION 5:

Observe Specimens A, E, and K carefully:

(a) Identify their type of metamorphosis.
(b) List the stages involved in the life cycle of any one of them.
(c) Which specimen is a pollinator? Give two reasons for your answer.
(d) State two harmful effects of Specimen A on humans.
(e) Mention one ecological role of Specimen K in agriculture.

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