Bio- Pract – ANSWERS
Bio
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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
iii)It does not have labial Palps
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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
2b)
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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4 ai)
phylum Annelida
4 aii )
i)Body is elongated and vermiform .
ii )It has segmented body
4 aiii )
Underground
4 bi)
i)Their streamlined shape allows them to burrow through soil.
ii )They have no skeletons or other rigid structures to interfere with their movement.
4 bii )
i)Earthworms play a vital role in breaking down organic particles in soil and aerating soil .
ii )It is used as bait in fishing .
iii )It destroys tender plant in fields and
garden by eating them .
4 c )
Image will drop soon
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