Biology- Pract – Ans
2 a )
A – Fish
D – mammal
E – flowering plant
2 aii )
they are used for respiration
2 aiii)
i ) possession of two rows of fine finger like filament
ii) possession of gill rakers
iii ) possession of richly supplied blood capillaries
2 b )
i ) they both are supplied with capillaries
ii) both of them are used for respiration
2 bii )
Tabulate
specimen C
i ) gill arch is present
ii) gill filament is present
iii ) gill rackers are present
specimen D
i ) gill arch is absent
ii) gill filament is absent
iii ) gill rackers are absent
2 c )
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4 ai)
Sepals, Petals, Carpels and Stamens
( ii) Sepals – 5
( iii ) Petals – 5
( iv ) Carpels – 1
( v ) Stamen – 10
4 bi)
Sex – monoecious
4 bii ) presence of both Carpels and Stamens
4 c )
i – Bilateral
ii – it can be cut vertically into two similar halves through one plane
4 d )
K – insect
L – wind
4 e )
Specimen K
i ) it has flower stalk
ii) it has petal
iii ) it has a style
iv ) it has receptacle
specimen L
i ) it has root
ii) it has leaves
iii ) it has a stem
iv ) it has a bud
4f)
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1 ai)
A – lives in stagnant water
B – lives in Leftovers food
1 aii )
A – into mosquito
B – into fly
1 aiii)
A – arthuropoda ( phylum insecta ( class )
B – arthuropoda ( phylum insecta ( class )
1 bi)
specimen A
i ) it has bristles
ii) it has horny jaw
iii ) it has siphon
1 bii )
specimen B
i ) it has a hook
ii) it has mouth
iii ) it has spiracle
1 ci )
tabulate
Specimen A
i ) presence of eye
ii) walking pad absent
iii ) bristle present
iv ) antenna present
v ) siphon present
specimen B
i ) absent of eye
ii) walking pad present
iii ) bristle absent
iv ) antenna absent
v ) siphon absent
1 cii )
i ) both are have segment body
ii) they have breathing organ
iii ) they both under go complete metamorphosts
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Completed
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