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NECO GCE Biology Practical Questions and Answers 2021/2022 Now Available

NECO GCE Biology Practical 2021 Answers

NECO GCE Biology Practical Questions and Answers 2021/2022 Now Available 1

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NECO GCE Biology Practical questions and answers 2021. Many NECO GCE candidates find it difficult to answer the NECO GCE Practical Biology correctly due to not understanding the questions. I will show you the best way to answer NECO GCE Biology Practical questions PDF and make a good NECO GCE result in your Biology examination.

Welcome to the NECO GCE Biology Paper I (Alternative to Practical) Answers to Questions for the years 2021-2022. Today is the last day of the NECO GCE Biology Practical expo.

Are you one of the candidates who has registered for the NECO GCE 2021/2022 Exams and is looking for NECO GCE 2021 Biology Practical Answers, NECO GCE Biology Practical 2021, NECO GCE Biology Practical expo, NECO GCE 2021 Biology Practical Runz, NECO GCE 2021 Biology Practical Answers, NECO GCE 2021 Biology Practical Answers, NECO GCE 2021 Biology Practical Answers? As long as this page is involved, your problem is fixed.

2021/2022 NECO GCE Biology Practical Questions: Biology Practical NECO GCE Expo Questions is out now on our website. In this article, I will be showing you the recent NECO GCE Biology Practical questions with answers.

BUT IF YOU THINK WHAT YOU’VE READ AND WHAT YOU’VE BEEN TAUGHT BY YOUR TEACHER IS ENOUGH TO TACKLE NECO GCE Biology Paper I (Alternative to Practical) QUESTIONS SET BY PROFESSORS, THEN GO AND RISK IT, I PRAY YOU WON’T REWRITE THESE EXAMS AGAIN. BUT KNOW THAT SUCCESS IS YOUR VICTORY”

You will also understand how NECO GCE Biology Paper I (Alternative to Practical) is set and many more examination details. All you need to do is to stay focused and follow this guide.

NECO GCE Biology Practical Answers Latest Update

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Conclusion on NECO GCE Biology Practical 2021 Question

Today’s NECO GCE Biology Practical Answers:

(3ai)

N – Cactus plant

O – Water lettuce

P – Soldier termite

(3aii)

N – Dry or arid land (terrestrial)

O – Freshwater swamp (aquatic)

P – Soil or wood

(3bi)

Adaptive features of N (Cactus):

(i)Thick succulent stems for storing water

(ii)Spikes protect cacti from animals

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

Adoptive features of O (Water lettuce):

(i)Tiny hairs on the roots and leaves helps it to float

(ii)Waxy leaves, which help water run off easily

(iii)Hairy leaves trap air bubbles, making it survive oxygen-deficient mediums.

(3bii)

DIAGRAM OF SPECIMEN P:

Mu1D8FL

(3ci)

(i)Good source of animal protein as food

(ii)Termites drive earthworms from soil that enhance soil fertility

(3cii)

(i)Soldier termites defend the nest from enemies and also protect the workers during food gatherings.

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

(2ai)

I – Spirogyra

J – Okro fruit

K – Mango fruit

L – Tick

M – Bean weevil

(2aii)

(i)Cup-shaped chloroplast

(ii)Green, with cylindrical cell

(2bi)

TABULATE

SPECIMEN J:

(i)Dry dehiscent fruit

(ii)Many-seeded

(iii0dispersal by explosion

SPECIMEN K:

(i)Succulent fruit

(ii)One-seeded

(iii)Dispersal by animal

(2bii)

L – Arachnida

M – Insecta

(2biii)

L – Bloodsucking of ticks causes skin irritation

M – Feed on seeds thereby reducing the quality and value of the beans.

(2ci)

DIAGRAM OF SPECIMEN K

UKvYAZo

(2cii)

TABULATE

SPECIMEN L:

(i)Have no wings to fly

(ii)Has no snout

SPECIMEN M:

(i)Have wings for flying

(ii)Has an elongated snout

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

(1ai)

A – Atlas vertebra

B – Thoracic vertebra

C – Scapula

D – Lumber Vertebra

(1aii)

A – Neck

B – Thorax

C – Pectoral girdle

D – Abdomen

(1aiii)

TABULATE

SPECIMEN A:

(i)Reduced neural spine

(ii)Centrum absent

SPECIMEN D:

(i)Neural spine broad and massive

(ii)Centrum present and well developed

(1aiv)

(i)Both B and D have no vertebrarterial canal

(ii)Both have prominent neural spines

(1b)

DIAGRAM OF SPECIM C:

(1ci)

E – Pooter

F – Sweep net

G – Tridax fruit

H – Tadpole

(1cii)

E – used for sucking in of tiny invertebrates such as insects from leaves.

F – Used for capturing flying insects such as butterflies.

(1ciii)

G is dispersed by wind.

(1iv)

(i)Sticky secretion for clinging to submerged vegetation.

(ii)Skin and external gills for respiration

(iii)Tail for swimming.

————————————————–

NECO GCE Bio Practical Practice Questions

The questions below are for practice not the 2021 Biology Practical questions.

  1. (a) (i) Phylum of specimens C/Butterfly and E/Grasshopper: Arthropoda

(ii) Reasons for the answer in 1 (a)(i): (I) Metameric segmentation/segmented bodies: (II) Jointed appendages; (III) presence of chitinous exoskeleton/exoskeleton made of chitin; (IV) Bilateral symmetry.

(b) differences between

(i)

C/ButterflyD/Caterpillar
Wings presentWings are absent
Proboscis presentMandibles are present
Proleg absentMandibles are present
Legs are longerLegs are shorter
Claspers are absentClaspers are present
Has one pair of compound eyesHas simple eyes
Has antennaeAbsence of antennae
Osmeterium absentOsmeterium present

(ii)

C/ButterflyE/Grasshopper
Presence of proboscisPresence of mandibles
Clubbed/rounded/knobbed antennaeNot clubbed/rounded/knobbed antennae/tapering antennae;
Wing is membreneous/softHarder/less membraneous wings/forewings are leathery
Surface of wing is powdery/have scales/eye spotsSurface of wing is not powdery/absence of scales/eye spots;
Hind limbs/legs smaller/shorter/less muscularHind limbs/legs/larger and elongated/more muscular
Abdomen is hairyAbdomen is not hairy/smooth

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

(i) C/butterfly is the adult/image of D/Caterpillar

(ii) D/Caterpillar is the larva/larva stage of C/Butterfly

(d) (i) Habitat of specimen D/Caterpillar: Garden/Citrus leaves/vegetables/leaves/fruits/green plant has three pairs of true legs with claws for locomotion. (III) it has claspers; for attachment to vegetation/twid; (IV) presence of four pairs of prologs/false legs: for climbing; (V) its coloured pattern; enables it to blend with its environment/camouflages/escape predators; (VI) it has spiracles; for gaseous exchange, (VII) it has simple eyes for vision (VIII) has osmeterium; as defense mechanism/which emits foul smell to scare away predators.

(e) Diagram/drawing of dorsal view of specimen C/Butterfly

2(a)observable features of biological importance in

Specimen F/Carrot: (i) Main root/tap root/swollen/root tuber; (ii) Presence of lateral roots; (iii) Presence of short stem (green) ; (iv) Presence of foliage leaves; (v) Part of main root tapering

Specimen G/Irish potato: (i) Swollen stem/stem tuber; (ii) Bud(s)/ eye; (iii) Lenticels; (iv) scale leaf; (v) adventitious roots(s)

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

(c) Class of specimen H and J: insect

(d) (i) Observable differences between specimen H and J.

H/Adult mosquitoJ/Adult cockroach
Smaller in sizeBig/large in size
A pair of wingsTwo pairs of wings;
Absence of hard hind wingPresence of hard hind wing/elytra;
Shorter antennaeLonger antennae
ProboscisMandible
Absence of maxillary palp/maxillaPresence of maxillary palp/maxilla
Thin legsThick/large legs;
Absence of spines on legsPresence of spine on legs.

(ii) Similarities between specimens H/adult mosquito and J/adult cockroach:

(i) Presence of a pair of compound eyes
(II) Body is divided into three divisions/head, thorax and abdomen
(iii) three pairs of/six(walking) legs
(IV) presence of jointed appendages
(V) presence of a pair of membraneous wings
(VI) Presence of a pair of antenna
(VII) Both have exoskeleton made of chitin
(VIII) Segmented Body.

(i) Feeding Habit of Specimen H/adult mosquito: Piercing and sucking. Specimen J/adult cockroach: Biting and chewing

(ii) Observing features used for feeding in specimen J/adult cockroach: Mandible; maxillae; labrum

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

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

(I) Presence of metameric segmentation/segments are separated from each other (by septa
(II) They are bilaterally symmetrical
(II) Segments are separated from each other
(IV) Presence of chaetae
(V) Body is covered by thin collagen cuticle
(VI) body is long and cylindrical.

(iii) Habitat of Specimen R/Earthworm:

(I) Under decaying leaves
(II) Wet/moist soil
(III) In open savanna/savannah beneath tall grasses
(IV) In the forests in decaying tree-stumps.

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

(I) Bristle like Caetae/seatea; for locomotion
(II) Mosit skin; for gaseous exchange
(III) Pointed anterior; for burrowing into the soil
(IV) Slimy body; reduces friction during movements
(V) Citellum; for attachment during exchange of sperms/reproduction/secretes cocoon (in which it eggs are deposited).

(ii) Economic importance of Specimen R/Earthworm:
(I) it aerates the soil
(II) it enriches/improves soil fertility
(III) its secretions neutralize the acid soil
(IV) Used as bait for fishing
(V) As food for some birds.

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

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

(e) (i) Observable differences between Specimens S and T

Specimen C/Unripe Mango FruitSpecimen T/tomato Fruit
Green in colourRed/Yellow in colour
One seededMany seeded
Stony/hard endocarpFleshy/Succulent/Soft endocarp
Fibrous mesocarpSucculent mesocarp
Seed largeSeed(s) small;
Basal placentationAxile placentation
Mesocarp and endocarp are fusedMesocarp had endocarp are not fused

(ii) Similarities between specimens S and T:

(I) Both have seeds

(II) both are fruits

(III) Both have three layers/epicarp/mesocarp/endocarp/pericarp/fruit wall

(IV) Coloured epicarp/pericarp

(V) Both have placenta

(VI) Both have thin epicarp

(VII) both have fleshy mesocarp.

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Please note that the answers presented in this post is a guide to the forthcoming national examination council NECO GCE exam Biology Practical. We have prepared it to aid the student in preparing for the practical. If you have any questions about the NECO GCE 2021 Biology Paper I (Alternative to Practical) questions and answers, kindly let us know in the comment box

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