NECO Biology Practical Questions and Answers 2022/2023 (Complete Solution)

NECO Biology Practical questions and answers 2022. Numerous NECO applicants find it hard to answer the NECO Practical Biology accurately because of not getting the questions. I will show you the most ideal way to address NECO Biology Practical questions PDF and make a good NECO result in your Biology examination.

NECO Biology Practical Questions and Answers 2022/2023 (Complete Solution)

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NECO Practical Biology Questions and Answers (Expo)

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Today’s NECO Biology Practical Answers: (2021 Answers)


N – Cactus plant

O – Water lettuce

P – Soldier termite


N – Dry or bone-dry land (earthly)

O – Freshwater swamp (oceanic)

P – Soil or wood


Versatile highlights of N (Cactus):

(i)Thick delicious stems for putting away water

(ii)Spikes shield prickly plants from creatures

(iii) Thick, waxy skin to diminish loss of water and to reflect heat.

Assenting elements of O (Water lettuce):

(i)Tiny hairs on the roots and passes on assists it with drifting

(ii)Waxy leaves, which assist with watering run off without any problem

(iii)Hairy leaves trap air bubbles, causing it to endure oxygen-insufficient mediums.




(i)Good wellspring of creature protein as food

(ii)Termites drive worms from soil that upgrade soil richness


(i)Soldier termites guard the home from adversaries and furthermore safeguard the specialists during food social affairs.



I – Spirogyra

J – Okro natural product

K – Mango natural product

L – Tick

M – Bean weevil


(i)Cup-molded chloroplast

(ii)Green, with round and hollow cell



Example J:

(i)Dry dehiscent organic product


(iii0dispersal by blast

Example K:

(i)Succulent natural product


(iii)Dispersal by creature


L – Arachnida

M – Insecta


L – Bloodsucking of ticks causes skin bothering

M – Feed on seeds subsequently decreasing the quality and worth of the beans.





Example L:

(i)Have no wings to fly

(ii)Has no nose

Example M:

(i)Have wings for flying

(ii)Has a prolonged nose



A – Atlas vertebra

B – Thoracic vertebra

C – Scapula

D – Lumber Vertebra


A – Neck

B – Thorax

C – Pectoral support

D – Abdomen



Example A:

(i)Reduced brain spine

(ii)Centrum missing

Example D:

(i)Neural spine expansive and enormous

(ii)Centrum present and very much evolved


(i)Both B and D have no vertebroarterial trench

(ii)Both have noticeable brain spines


Outline OF SPECIM C:


E – Pooter

F – Sweep net

G – Tridax organic product

H – Tadpole


E – utilized for sucking in of little spineless creatures like bugs from leaves.

F – Used for catching flying bugs like butterflies.


G is scattered by wind.


(i)Sticky emission for sticking to lowered vegetation.

(ii)Skin and outer gills for breath

(iii)Tail for swimming.


NECO Bio Practical Practice Questions
The inquiries beneath are for training, not the 2022 Biology Practical inquiries.

1. (a) (I) Phylum of examples C/Butterfly and E/Grasshopper: Arthropoda

(ii) Reasons for the response in 1 (a)(i): (I) Metameric division/divided bodies: (II) Jointed limbs; (III) presence of chitinous exoskeleton/exoskeleton made of chitin; (IV) Bilateral balance.

(b) Difference between


C/Butterfly D/Caterpillar
Wings present Wings are missing
Proboscis present Mandibles are available
Proleg absent Mandibles are available
Legs are longer Legs are more limited
Claspers are absent Claspers are available
Has one sets of compound eyes Has basic eyes
Has antennae Absence of antennae
Osmeterium absent Osmeterium present


C/Butterfly E/Grasshopper
Presence of proboscis Presence of mandibles
Clubbed/adjusted/knobbed antennae  Not clubbed/adjusted/knobbed antenna/tightening antenna;
Wing is membranous/soft Harder/less membranous wings/forewings are rugged
Surface of wing is powdery/have scales/eye spots Surface of wing is not powdery/absence of scales/eye spots;
Hind limbs/legs smaller/shorter/less muscular Hind limbs/legs/larger and elongated/more muscular
Abdomen is hairy Abdomen is not hairy/smooth


(c) Relationship between examples C/Butterfly and D/Caterpillar:

(I) C/butterfly is the grown-up/picture of D/Caterpillar

(ii) D/Caterpillar is the hatchling/hatchling phase of C/Butterfly

(d) (I) Habitat of example D/Caterpillar: Garden/Citrus leaves/vegetables/leaves/organic products/green plant has three sets of genuine legs with paws for motion. (III) it has claspers; for connection to vegetation/twid; (IV) presence of four sets of prologs/bogus legs: for climbing; (V) its shaded example; empowers it to mix with its current circumstance/covers/get away from hunters; (VI) it has spiracles; for vaporous trade, (VII) it has straightforward eyes for vision (VIII) has osmeterium; as protection component/which emanates foul smell to frighten off hunters.

(e) Diagram/drawing of dorsal perspective on example C/Butterfly

2(a)observable elements of natural significance in

Example F/Carrot: (I) Main root/tap root/enlarged/root tuber; (ii) Presence of horizontal roots; (iii) Presence of short stem (green) ; (iv) Presence of foliage leaves; (v) Part of fundamental root tightening

Example G/Irish potato: (I) Swollen stem/stem tuber; (ii) Bud(s)/eye; (iii) Lenticels; (iv) scale leaf; (v) unusual roots(s)

(b) (I) Classification of (I) Specimen F/Carrot: Root tuber; (II) Specimen G/Irish Potato: Stem tuber. Stem (over the enlarged tap root). Example G/Irish Potato: Swollen, Stem/tuber; presence of bud(s)/eye; presence of scale leaves/leaf; presence of lentice(s).

(c) Class of example H and J: bug

(d) (I) Observable contrasts between example H and J.

H/Adult mosquito J/Adult cockroach
More modest in size Big/enormous in size
A couple of wings Two sets of wings;
Nonappearance of hard rear wing Presence of hard rear wing/elytra;
More limited antennae Longer recieving wires
Proboscis Mandible
Nonappearance of maxillary palp/maxilla Presence of maxillary palp/maxilla
Slender legs Thick/huge legs;
Nonappearance of spines on legs Presence of spine on legs.
(ii) Similarities between examples H/grown-up mosquito and J/grown-up cockroach:

(I) Presence of a couple of compound eyes
(II) Body is separated into three divisions/head, chest and mid-region
(iii) three sets of/six(walking) legs
(IV) presence of jointed extremities
(V) presence of a couple of membranous wings
(VI) Presence of a couple of receiving wire
(VII) Both have exoskeleton made of chitin
(VIII) Segmented Body.

(I) Feeding Habit of Specimen H/grown-up mosquito: Piercing and sucking. Example J/grown-up cockroach: Biting and biting

(ii) Observing highlights utilized for taking care of in example J/grown-up cockroach: Mandible; maxillae; labrum

4. (a) (I) Phylum of Specimen R/Earthworm: Annelida

(ii) Reasons for the order of Specimen R/Earthworm:

(I) Presence of metameric division/sections are isolated from one another (by septa
(II) They are respectively balanced
(II) Segments are isolated from one another
(IV) Presence of chaetae
(V) Body is covered by meager collagen fingernail skin
(VI) body is long and tube shaped.

(iii) Habitat of Specimen R/Earthworm:

(I) Under rotting leaves
(II) Wet/sodden soil
(III) In open savanna/savannah underneath tall grasses
(IV) In the timberlands in rotting tree-stumps.

(b) (I) Features of adaption of Specimen R/Earthworm:

(I) Bristle like Caetae/seatea; for velocity
(II) Mosit skin; for vaporous trade
(III) Pointed foremost; for tunneling into the dirt
(IV) Slimy body; lessens grinding during developments
(V) Citellum; for connection during trade of sperms/multiplication/secretes casing (in which it eggs are stored).

(ii) Economic significance of Specimen R/Earthworm:
(I) it circulates air through the dirt
(II) it enhances/further develops soil ripeness
(III) its discharges kill the corrosive soil
(IV) Used as lure for fishing
(V) As nourishment for certain birds.

(c) Diagram/Drawing of the dorsal perspective on Specimen R/Earthworm

(d) Type of natural product: Specimen S/unripe mango natural product – Drupe, Specimen T/tomato natural product – Berry.

(e) (I) Observable contrasts between Specimens S and T

Example C/Unripe Mango Fruit Specimen T/tomato Fruit
Green in color Red/Yellow in shading
One seeded Many cultivated
Stony/hard endocarp Fleshy/Succulent/Soft endocarp
Stringy mesocarp Succulent mesocarp
Seed large Seed(s) little;
Basal placentation Axial placentation
Mesocarp and endocarp are fused Mesocarp had endocarp are not combined
(ii) Similarities between examples S and T:

(I) Both have seeds

(II) both are natural products

(III) Both have three layers/epicarp/mesocarp/endocarp/pericarp/natural product divider

(IV) Colored epicarp/pericarp

(V) Both have placenta

(VI) Both have slender epicarp

(VII) both have plump mesocarp.

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