Thursday, 30th April, 2015
Biology 3(Practical) (Alt. A) ---------- 8.30am - 10.30am
Biology 3(Practical) (Alt. A) ---------- 11.00am -1.00pm
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BIOLOGY PRACTICAL ANSWERS
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BIOLOGY PRACTICAL ANSWERS
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(1a)
Division;-Magnoliophyta
Class;-Magnoliopsida
Division;-Magnoliophyta
Class;-Magnoliopsida
(1b)
(i)
A-Spiral
B-Opposite
(i)
A-Spiral
B-Opposite
(ii)
A-swordlike
B-Oval/Oblong
A-swordlike
B-Oval/Oblong
(1c)
(i) A-smoooth
(ii)A-alternate venation
B-Net venation
(i) A-smoooth
(ii)A-alternate venation
B-Net venation
(1d)
(i)
-They both have Narrow leaf
-They both have Green colouration of leaf
-They are both angiosperm
They are both dicotyledinous plant
(i)
-They both have Narrow leaf
-They both have Green colouration of leaf
-They are both angiosperm
They are both dicotyledinous plant
(ii)
-Specimen A contains many leaves whie specimen B contains fewer leaves
-Specimen A is darker in colour while specimen B is lighter in colour
-Specimen A posses hard stem while specimen B posses succulent stem
-Specimen A has scaly appearance while specimen B does not have scaly appearance
-Specimen A contains many leaves whie specimen B contains fewer leaves
-Specimen A is darker in colour while specimen B is lighter in colour
-Specimen A posses hard stem while specimen B posses succulent stem
-Specimen A has scaly appearance while specimen B does not have scaly appearance
No 2
Ai
G-Arthoropoda
H-Arthropoda
Ai
G-Arthoropoda
H-Arthropoda
ii
1-possession of exoskeleton of chtin.
2-possession of joint appendages.
1-possession of exoskeleton of chtin.
2-possession of joint appendages.
B
G-Mandible.
H-Mandible
G-Mandible.
H-Mandible
Ci
G-Arboreal
H-Termitarium
G-Arboreal
H-Termitarium
Ii.
G
1.Worker bee is a source of formic
acid.
2.It a source of income
G
1.Worker bee is a source of formic
acid.
2.It a source of income
H
1.it increase the nutient of the soil.
2.It destroys farm produce.
1.it increase the nutient of the soil.
2.It destroys farm produce.
D
i M-Aves
N-pisces
P-vertebrata
i M-Aves
N-pisces
P-vertebrata
ii. Protein of the organism
I
ii. M
I.Absense of sweet pore
2.Presence of barbs
3.Presence of Rachis
4.Presence of shaft
I
ii. M
I.Absense of sweet pore
2.Presence of barbs
3.Presence of Rachis
4.Presence of shaft
P
1.Presence of sweet pore.
2.Absence of barbs
3.Absence of rachis
4.Absence of shaft.
1.Presence of sweet pore.
2.Absence of barbs
3.Absence of rachis
4.Absence of shaft.
E
1.inferid umbilicus attaches the
specimen the skin of the bird.
2.Rachis hold the barbs in place.
3.The barbs insulate the body.
1.inferid umbilicus attaches the
specimen the skin of the bird.
2.Rachis hold the barbs in place.
3.The barbs insulate the body.
(4ai.)
Specimen L ——- Terrestrial habitat
Specimen M —— Terrestrial habitat
Specimen N ——-Terrestrial habitat
Specimen L ——- Terrestrial habitat
Specimen M —— Terrestrial habitat
Specimen N ——-Terrestrial habitat
II.
Specimen L ——— Photosynthesis/
autotrophic.
Specimen M ——– Biting and chewing /
heterotrophic
Specimen N ——–Saprophytic
Specimen L ——— Photosynthesis/
autotrophic.
Specimen M ——– Biting and chewing /
heterotrophic
Specimen N ——–Saprophytic
iii. Specimen L —– They are green plants
therefore they are able to produce their own
food through photosynthesis.
Specimen M —– They have maxilla and
mandibles that are adapted to bite and chew
grasses.
therefore they are able to produce their own
food through photosynthesis.
Specimen M —– They have maxilla and
mandibles that are adapted to bite and chew
grasses.
(4bi.) They all lives in the same habitat and
they depend on each other to survive.
Freshly uprooted grass —– grasshopper——–Mushroom
they depend on each other to survive.
Freshly uprooted grass —– grasshopper——–Mushroom
(ii.) sources of food for man.
reduction of crop yields.
reduction of crop yields.
(iii.) Using of insecticides.
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