NECO Biology Practical Specimen Questions and Answers 2022 is now release for the May/June 2022. NECO Biology Practical Specimen Theory and Objective Answers (100%legit) Biology Practical Specimen Essay verified Free (Expo) for National Examination Council. NECO Biology Practical Specimen Questions For you to have good NECO result in Biology Practical Specimen as well as repeated questions for free in this post. You will also understand how NECO Biology Practical Specimen questions are set and how to answer them. The National Examination Council is an examination body in Nigeria that conducts the Senior Secondary Certificate Examination and the General Certificate in Education in June/July and November/December respectively.
NECO Practical Biology Questions and Answers (Expo)
Note: The 2022 NECO Practical Biology answers (expo) will be posted here during the NECO Biology Practical exam. Keep checking and reloading this page to know when the answers are posted. Do not forget to reload this page in order to see the answers.
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Today’s NECO Biology Practical Answers: (2021 Answers)
N – Cactus plant
O – Water lettuce
P – Soldier termite
N – Dry or arid land (terrestrial)
O – Freshwater swamp (aquatic)
P – Soil or wood
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.
DIAGRAM OF SPECIMEN P:
(i)Good source of animal protein as food
(ii)Termites drive earthworms from soil that enhance soil fertility
(i)Soldier termites defend the nest from enemies and also protect the workers during food gatherings.
I – Spirogyra
J – Okro fruit
K – Mango fruit
L – Tick
M – Bean weevil
(ii)Green, with cylindrical cell
(i)Dry dehiscent fruit
(iii0dispersal by explosion
(iii)Dispersal by animal
L – Arachnida
M – Insecta
L – Bloodsucking of ticks causes skin irritation
M – Feed on seeds thereby reducing the quality and value of the beans.
DIAGRAM OF SPECIMEN K
(i)Have no wings to fly
(ii)Has no snout
(i)Have wings for flying
(ii)Has an elongated snout
A – Atlas vertebra
B – Thoracic vertebra
C – Scapula
D – Lumber Vertebra
A – Neck
B – Thorax
C – Pectoral girdle
D – Abdomen
(i)Reduced neural spine
(i)Neural spine broad and massive
(ii)Centrum present and well developed
(i)Both B and D have no vertebrarterial canal
(ii)Both have prominent neural spines
DIAGRAM OF SPECIM C:
E – Pooter
F – Sweep net
G – Tridax fruit
H – Tadpole
E – used for sucking in of tiny invertebrates such as insects from leaves.
F – Used for capturing flying insects such as butterflies.
G is dispersed by wind.
(i)Sticky secretion for clinging to submerged vegetation.
(ii)Skin and external gills for respiration
(iii)Tail for swimming.
NECO Bio Practical Practice Questions
The questions below are for practice, not the 2022 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 present||Wings are absent|
|Proboscis present||Mandibles are present|
|Proleg absent||Mandibles are present|
|Legs are longer||Legs are shorter|
|Claspers are absent||Claspers are present|
|Has one pair of compound eyes||Has simple eyes|
|Has antennae||Absence of antennae|
|Osmeterium absent||Osmeterium present|
|Presence of proboscis||Presence of mandibles|
|Clubbed/rounded/knobbed antennae||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
For those that would like to see the question paper, you can click on the link below: