NECO SSCE biology Practical. Many students keep searching for the 2021 biology Practical Questions and Answers, likely questions, past questions and answers, questions for practice, NECO Biology Practical specimen and so on. If you are asking any of these questions or any other, you are in the right place.
In this post, I will give you free access to the 2021 NECO biology Practical Questions and Answers, specimen and examination details which you need to know including the right steps to take if you must this year’s biology Practical examination.
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Today’s NECO Biology Practical Answers
Specimen; A is yam tuber
Specimen; B is cassava tuber
Specimen; C is quadrant
Specimen; D is insect net
Specimen; E is rain guage
Specimen; F is rice grain
Specimen; G is dry groundnuts seed
Specimen; A is propagated from small tubers
Specimen; B is propagated by stem
Specimen; F is propagated by seeds
Specimen; C is used for for study of the distribution of an item over a large area.
Specimen; D is used for prevention against insects
Specimen; E is used to measure the precipitating rain
Diagram of insect net.
(i)The surface of B turn blue-black
(ii)starch is present
Specimen; F grains (cereals)
Specimen; G puises (legume)
(i)The paper appears translucent
(ii) Specimen; G contain fat and oil or fat and oil is present in specimen G
Fat and oil
Specimen; H is contour feather
Specimen; I is quill feather
Specimen; J is Filoplume
Specimen; K is millipede
Specimen; L is centipede
(i)They provide insulation to birds
(ii)Feathers allow for flight
(iii)Feathers are used for defense
(iv)Feathers are used for camouflage
Diagram of specimen I.
(i)Specimen; H serve as aerodynamic
devices for flight
(ii)Specimen; J are used principally as insulation, to conserve body heat.
Specimen; K belong to the class Diplopoda
Specimen; L belong to the class Chilopoda.
In tabular form
(i)millipedes are more rounded.
(ii)Millipedes have two sets of legs per segment positioned directly under their body.
(i)centipedes have a flatter body
(ii)Centipedes have one set of legs per segment positioned on the side of their body.
Specimen; M is Grasshopper
Specimen; N is spider
Specimen; O is Larva (house fly)
Specimen; P is Larva ( mosquito)
Specimen; Q Flame of The forest flower
Specimen; R hibicuss flower.
NECO Bio Practical Practice Questions
The questions below are for practice not the 2020 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
Wings are absent
Mandibles are present
Mandibles are present
Legs are longer
Legs are shorter
Claspers are absent
Claspers are present
Has one pair of compound eyes
Has simple eyes
Absence of antennae
Presence of proboscis
Presence of mandibles
Not clubbed/rounded/knobbed antennae/tapering antennae;
Wing is membreneous/soft
Harder/less membraneous wings/forewings are leathery
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 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
(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.
Smaller in size
Big/large in size
A pair of wings
Two pairs of wings;
Absence of hard hind wing
Presence of hard hind wing/elytra;
Absence of maxillary palp/maxilla
Presence of maxillary palp/maxilla
Absence of spines on legs
Presence 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 Fruit
Specimen T/tomato Fruit
Green in colour
Red/Yellow in colour
Mesocarp and endocarp are fused
Mesocarp 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
How to pass your NECO biology Practical examination
Before I give you these helpful tips, it is important for you to know that both your biology Practical examination and the Objective questions and answers (paper I, II & III) are counted together and your grade dully awarded.
Make use of NECO biology Syllabus
Syllabus gives you the area of concentration for each subject such that you don’t have to read the whole book before you pass. It also contains the recommended textbooks for each subject.
Use the Practical manual
Once you lay hold of the Practical manual, do well to start practicing the questions and answers there in. No need to wait till the examination period before you start.
Study the specimen
The specimen comes out before the examination date. Do well to study their possible questions and answers. NECO Biology Practical questions come from the approved specimen. In the same manner, you are expected to give answers relating to those specimen. So, earlier you start to study them, the better for you.