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WAEC 2017: 100% Verified Biology Practical Answers
WAEC April 24, 2017 • 4 years ago • No Comment Yet

WELCOME TO EXAMRELIEF WAEC 2017 ANSWERS PAGE!!

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KEEP REFRESHING THIS PAGE FOR THE COMPLETE ANSWERS AS WE ARE TYPING IT


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2017 WEAC (BIOLOGY PRACTICAL) 100% VERIFIED QUESTIONS


?WAEC 2017 BIOLOGY PRACT. ANSWERS?

100% VERIFIED BIOLOGY PRACT.  ANSWERS

1ai)
i)Arthropoda
1aii)
i)They have segmented bodies
ii)Their bodies are divided into head, thorax and abdomen
iii)They have jointed appendages
iv)They have exoskeletons
1bi)
In tabular form
sp C
i)It has wings
ii)It has jointed legs
iii)It has antennae
iv)It does not have clasper
sp D
i)It does not have wings
ii)It does not have jointed legs
iii)It does not have antennae
iv)It has clasper
1bii)
sp C
i)the antennae are not segmented
ii)The eyes are smaller
iii)It has labial palps
sp E
i)The antennae are segmented
ii)The eyes are larger
1e. CLICK HERE TO VIEW NO 1e DIAGRAM
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2 ai)
i)Carrot is good source of vitamin .
ii )It is a source of diet that improve vision
iii )it is used in production of juice
2 aii )
i)It is a good source of carbohydrates
ii )It supplies Energy
iii )It serve as primary producer for heterotrophs
2bi)
F – Is a root & tuber
G – is a stem & tuber
2bii) Specimen F
– it has an adventitious root
– it has bud at the base
Specimen G
– It has some bud on its surface
– it is a swollen end of of a special underground plant.
2c)
H – Class is Insecta
J – Class is insecta
Different btw H & J
Specimen H
– it has proboscis
– it is smaller than J
– it feed on blood
– it has no color
SPECIMEN J
– It has Labrirum
– It is Larger
– it feed on abandon food
– it is dark brown
2dii)
– They both has wing
– They are both active in the night
– They both breadth with aid of trachea system
– The body is divided into head thorax & abdomen
2ei)
H – as proboscis for sacking blood
J – It as Labrirum for bitting & chewing.
2eii)
– has a pair of antenna for preserving food
– Has a bitting& chewing mouth part.
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4ai)
phylum Annelida
4aii)
i)Body is elongated and vermiform.
ii)It has segmented body
4aiii)
Underground
4bi)
i)Their streamlined shape allows them to burrow through soil.
ii)They have no skeletons or other rigid structures to interfere with their movement.
(4bii)
i. they improve the fertility of soil in different ways.and therefore they are important in agriculture
ii. they also reduced the the alkalinity and acidity of the soil to provide better conditions for plant growth.
iii. they are used for bait and food as bait they used it in catching fish.
4c. CLICK HERE TO VIEW NO 4C DIAGRAM OR HERE OR HERE
(4d)
S – Drupe
T – Berry
(4e)
Tabulate:
Specimen S
-The seed is not many
-It has seed chamber
-It has oval shape
-It has no sepal attached
Specimen T
-The seeds are many
-It does not have seed chamber
-It has a spherical shape
-It has sepal attached
(4e)
-They both have succulent mesocarp
-They both have thin epicarp
-They both have seeds
-They both have endocarp

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