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NABTEB 2017 BIOLOGY PRACTICAL

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NABTEB- BIOLOGY PRACTICAL

NABTEB 2017 BIOLOGY PRACTICAL
EXAM TIME: Thursday 4th May 2017
Biology (Practical) 9.00a.m-11.00a.m

Animal Husbandry (Practical) 12:00pm-2.30pm
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(1i)
-Water
-Carbondioxide
-Sunlight
-Chlorophyll

(1ii)
-Mammalian skin protects the body against mechanical injuries
-It helps in the regulation of body temperature
1iii)
-The blood contains leucocytes which protect the body against infectitious diseases and foreign invaders
-The blood contains erythrocytes which helps in transporting oxygen and carbondioxide due to the presence of hemoglobin
1iv)
-Euglena contains chlorophyll which can only be found in plants
-Euglena stores carbonhydrates in form of starch granules
1v)
-WHO helps in reducing child mortality by providing necessary health equipment
-WHO helps in combating HIV/AIDs,malaria and other diseases
1vi)
-Nigeria
-Sierra leone
1vii)
TABULATE
Monocotyledon|Dicotyledon
-They have parallel venation|They have net venation
-They exihibit hypogeal germination|They exihibit epigeal germination
1viii)
-Carbonhydrate
-Protein
-Fat and oil
-Vitamin
-Mineral
-Water
1ix)
-By salting
-By canning
-By freezing
-By adding chemicals
-By sun drying
1x)
-Wildlife
-Soil
-Water
-Forest
1xi)
-Water ferns
-Felimas
1xii)
-It aids photosynthesis
-It stores chlorophyll
1xiii)
-Surface of the gills
-Surface of the lungs
-Wet skin
-Body surface
1xiv)
-It is a reproductive structure of the plant
-It is a cluster of modified leaves
1xv)
Retina
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2ai)
A-Tilapia fish
B-Adult toad
C-Cockroach
A-Class pisces
B-class amphibian
C-Class insecta
2b)
A-Tilapia fish is a source of protein diet
B-Adult toad helps in completing the food web because it consumes the insect
DRAW THE DIAGRAM OF TILAPIA FISH

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3ai)
D-Grasshopper
E-Groundnut seed
3aii)
D-Grasshopper destroys farm produce thereby reducing market value
E-Groundnut seed is a source of protein in animal feeds
3bi)
A-Aquatic habitat
D-Terrestial habitat
3bii)
-It posses wings that are used for fleeing from predators
-It posses spiracle for respiration or gaseous exchange
-It posses antennae which is used for detecting sensation
3c)
TABULATE
Specimen C|Specimen D
-It has small hind legs|It has large hind legs
-It has small mandibles|It has large mandibles
-It has flat doxo-ventral body|It has round body

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4ai)
E-Groundnut seed
F-Cowpea seed
4aii)
Lenticels and lupins
4bi)
Epigeal germination
4bii)
They liberate soil nitrates because they harbour microbes in their root nodules
4ci)
Weevils
4cii)
-Fats and oil
-Protein
4ciii)
-Drying
-Freezing
-Canning
-Fumigation


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5ai)
-They have six legs
-They have three body parts ie head,thorax and abdomen
-They have antennae for sensation
-They have two pairs of wings for flight
5aii)
Exoskeleton
5b)
DRAW THE DIAGRAM

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