![2023 NABTEB GCE Agric Practical Answers [18th November]](https://3.bp.blogspot.com/-1dKhkcEqhYo/WnnGiOpLmUI/AAAAAAAAAok/nRK0FfO937YZ64R_WsIzbs8dFx0junVAgCPcBGAYYCw/s1600/NABTEB%2BNigeria.jpg "2023 NABTEB GCE Agric Practical Answers [18th November]")
Saturday 18th November, 2023
Paper II: Practical – Agricultural Science
09:00am – 11:00am
NABTEB NOV/DEC GCE AGRIC PRACTICAL ANSWERS 2023:
(1a)
A - Axe
B - Spade
C - Hedge shears
D - Hand fork
E - Pitchfork
(1b)
A - Axe:
(i) It is for cutting or splitting wood
(ii) It is used for uprooting tree stumps.
B - Spade:
(PICK ANY TWO)
(i) It is used for digging holes
(ii) It is used for turning and mixing soil in garden beds.
(iii) It is used to harvest root vegetables like potatoes, carrots, and beets.
(iv) It is used for removing weeds
C - Hedge shears:
(PICK ANY TWO)
(i) They can be used to create clean, uniform lines and maintain the desired size and shape of the hedge
(ii) For cutting overgrown vegetation
(iii) They are used for pruning and shaping various types of shrubs.
(iv) They are used to selectively remove dead or diseased branches from hedges and shrubs
(v) They are used in topiary work to sculpt hedges and shrubs into decorative forms.
D - Hand fork:
(PICK ANY TWO)
(i) They are used to loosen and aerate soil
(ii) Gardeners use it to turn and mix compost piles
(iii) It is handy for creating holes in the soil, making it easier to plant and transplant of seedlings.
(iv) It can be used to lift and clear debris, leaves, or other materials from the garden.
E - Pitchfork
(PICK ANY TWO)
(i) It used for turning and aerating compost piles.
(ii) It is useful for spreading mulch in garden beds.
(iii) It is used for clearing away debris, leaves, and other organic matter from gardens.
(iv) It is used for lifting and moving hay or straw bales.
(1c)
(PICK ANY TWO)
(i) It has a long, straight handle made of wood or sometimes metal.
(ii) They have thin pointed tines at the end of the tool.
(iii) The prongs or tines are often made of steel and may be straight or slightly curved.
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(2a)
F - Animal horn
G - Animal skin
(2b)
(PICK ANY THREE)
(i) Poultry
(ii) Pig
(iii) Horse
(iv) Donkey
(v) Rabbit
(2ci)
(i) Goats
(ii) Cattle
(2cii)
Sheep
(2d)
Specimen F:
(PICK ANY TWO)
(i) They are often used by animals for defense against predators or rivals
(ii) In some species, animals use their horns to attract mates
(iii) Horns have blood vessels that help regulate body temperature
(iv) For scratching the body.
(v) Enhances the appearance of the animal possessing it.
Specimen G:
(PICK ANY TWO)
(i) For excretion through sweating.
(ii) For temperature regulation of the body.
(iii) It serves as a protective barrier against physical injuries, pathogens, and harmful environmental elements.
(iv) For response to environmental stimulus.
(2e)
(PICK ANY THREE)
(i) Problems of space when transporting the animals
(ii) Animals may injure the owner or herdsmen with the horns
(iii) Animals may injure one another with the horns
(iv) Animals may use horns to destroy buildings and other farm structures
(v) Animals with horns bully their young ones and those without horns
(vi) Requires larger housing space and more pens spaces
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(3a)
I - Crop
II - Proventriculus
III - Gizzard
IV - Duodenum
V - Small intestine
VI - Colon
(3b)
(PICK ANY THREE)
(i) Chicken
(ii) Duck
(iii) Turkey
(iv) Guinea fowl
(v) Goose
(3c)
PART I - Crop:
(i) The crop serves as a temporary storage organ where ingested food is stored before digestion
(ii) The crop moistens and softens the food with saliva, aiding in the initial stages of digestion.
(iii) Enzymes in the saliva and bacterial fermentation in the crop contribute to the partial breakdown of complex carbohydrates.
PART II - Gizzard
(PICK ANY THREE)
(i) It acts as a powerful mechanical grinder, helping to break down feed into smaller, digestible pieces.
(ii) It secretes hydrochloric acid, creating an acidic environment that aids in the digestion of proteins and minerals.
(iii) The gizzard mixes the partially digested food with digestive enzymes and stomach acids for optimal digestion.
(iv) The gizzard helps filter out any indigestible material from the food.
(v) The gizzard regulates the movement of food from the stomach into the intestine.
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(4a)
H - Transverse section of a tomato
I - Longitudinal section of a mango fruit
J - Spinach
K - Transverse section of an orange fruit
(4b)
SIMILARITIES BETWEEN H & K:
(i) Both tomatoes and oranges have seeds embedded in the flesh.
(ii) Both have a pulpy interior.
DIFFERENCES BETWEEN H & K:
(PICK ANY TWO)
(i) Tomatoes typically have a red or pinkish color, while oranges have an orange or yellow hue.
(ii) Tomatoes often have a softer and juicier texture, while oranges may have a firmer and more fibrous texture.
(iii) Tomatoes have a tangy and slightly sweet taste, while oranges have a sweet and citrusy flavor.
(iv) Tomato seeds are typically small and flat, while orange seeds are larger and may be more noticeable
(4c)
Leafy vegetables
(4d)
H - By seed
I - By seed
J - By seed
K - By seed
(4e)
(PICK ANY ONE)
(i) Aphids
(ii) Leaf Miners
(iii) Flea Beetles
(iv) Whiteflies
(v) Thrips
(4f)
(PICK ANY ONE)
(i) Early blight
(ii) Septoria leaf spot
(iii) Late blight
(iv) Buckeye rot
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