NABTEB 2017 Biology Practical Question And Answer | Free Expo

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This is to Inform all 2017 National Business and Technical Examinations Nabteb candidates that are writing Biology Practical Today 04th Of May 2017.

NABTEB 2017 Biology Practical Answer

1i)
i)carbon(iv)oxide
ii)chlorophyll
iii)sunlight
iv)water and mineral salts

1ii)
i)protection: skin protects the body against entrance by microtes etc
ii)excretion: skin excretes excess water mineral salts and some nitrogenous wastes through the sweat glands as sweat

1iii)
i)transport of oxygen
ii)temperature regulation

1iv)
i)presence of chlorophyll for photosynthesis
ii)presense of cellular cell wall

1v)
i)it promote measures for the control of the world’s major disease’s through vaccuiation programmes and use of aritibioties
ii)it helps to set up international quararrayive regulation

1vi)
i)sieria-leone
ii)nigeria

1vii)
-monocotyledonous-
i)they store food in the endo sperm
ii)posses parallel veriation
-dicotyledonous-
i)they store food in the cotyledon
ii)posses not veriation

1viii)
i)protein 15%
ii)fats and oil 15%
iii)vitamins,minerals and water 10%
iv)carbonhydrate 60%

1ix)
i)canning
ii)suning
iii)smoking
iv)dehydration

1x)
i)soil
ii)forestry
iii)wild life
iv)water

1xi)
i)water ferns

1xii)
i)they manufacture food for plant
ii)they help in interchange of gases in plant

1xiii)
i)lungs
ii)gills
iii)tracheal
iv)skin

1xiv)
i)to help attract pollinators to a plant and in fertilization so that the plant creates seed
ii)they mediate the joining of the sperm contain within pollen to the ovules contained in the ovary

1xv)
i)retina

2ai)
A-tilapia fish
B-adult toad
C-cockroach

2aii)
A-pisces
B-Amphibian
C-insecta

2b)
A-source of food
B-source of protein

3ai)
D- grasshopper
E- groundnut seed

3aii)
D-it destroys crops
E-it is a source of protein, fat and oil

3bi)
A- aquatic habitat
D- terrestrial habibat

3bii)
i)presence of lings for flight
ii)presence of a pair of Artemis for locomotion
iii)presence of a pair of legs for movement

3c)
specimen C – cockroach
i)Dark or brown in colour
ii)it is bigger in size
ii)it arterma is longer

secimenp D- grasshopper
i)green in colour
ii)it is smaller in size
iii)it anterma is shorter

4ai)
E-Groundnut seed
F-cowpea seed

4aii)
i)melon
ii)mango

4bi)
i)epigeal germination
ii)the specimen are leguminous plants,they contribute to the soil fertility by nitrogen fixation mechanism

4ci)
i)weavil

4cii)
i)fat and oil
ii)protein

4ciii)
i)by sunning
ii)by canning of bitting
iii)by dehydration
iv)by application pasticides

5ai)
i)body division is three head thorax and abdomen
ii)presence of a pair antenna
iii)presence of 3 pair of walking legs
iv)presence of lungs

5aii)
i)exoskeleton

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