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Biology Practical 2015 Expo Runz




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+Thursday, 30th April, 2015:
Biology 3(Practical) (Alt. A) ---- 9.30am - 11.30am
Biology 3(Practical) (Alt. A) ---- 12.00pm - 2.00pm
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(1a)
Division;-Magnoliophyta
Class;-Magnoliopsida

(1b)
(i)
A-Spiral
B-Opposite

(ii)
A-swordlike
B-Oval/Oblong

(1c)
(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

(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 no


(2ai)
G-Arthropoda
H-Arthropoda

(2aii)
1-possession of exoskeleton of chtin.
2-possession of joint appendages.

(2b)
G-Mandible.
H-Mandible

(2ci)
G-Arboreal
H-Termitarium

(2cii)
G:
1.Worker bee is a source of formic
acid.
2.It a source of income

H:
1.it increase the nutrient of the soil.
2.It destroys farm produce.


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OUR SUBSCRIBERS FROM GHANA. WRITE NO 3. NO ANY NIGERIA CANDIDATES MUST WRITE NO3 PLEASE WE BEG YOU . AS NO ANY MARK WILL BE AWARDED TO YOU.

(3a)
specimen c = Tilapia fish
specimen d = Toad

(3b) Aquatic habitat
(3c) specimen c is pisces specimen d is amphibians

(3di)
tabulate specimen
ci. they have simple
eye
ii. they have fins for movement in
water specimen
d i. they have bugly eye
ii.
they have two pairs of limbs

(3dii)
1. they
have two- chambered heart
2. they have
gills for gaseous exchange
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(4ai.)
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

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.

(4bi.) They all lives in the same habitat and
they depend on
each other to survive.
Freshly uprooted grass —– grasshopper
——–Mushroom
(ii.) sources of food for man.
reduction of crop yields.
(iii.) Using of insecticides.



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