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Waec Gce 2017 Biology Practical Answers – Nov/Dec Expo
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GCE 2017 Biology Practical QUESTION AND ANSWERS NOW AVAILABLE.

Bio-Pract-Ans

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1ai) Pectoral Girdle(Scapula
1aii) I-Scapula
II-Spine of scapula
III-Covacord process
IV-Acronium Process
V-Gleniod cavity
VI-Metacronium process

(1b)
(i) Humerus
(ii) Ball and socket Joint

(1c)
(i) It holds the upper limb to the axial skeleton
(ii) Attachment of muscles

1d)
I. Sunlight
II. Oxygen
III. Bubbles of gas
IV. test tube
V.funnel
VI .water
VII.Beaker
VIII.Elodea
1e)
i)To show that oxygen is given off During photosynthesis.
ii)
-Sunlight
-carbon (iv)oxide
1f)
i.water
iiElodea
iii. Photosynthesis
iv. The oxygen can be tested by bringing a glowing splincter close to it,which will be rekindled.
========================================
2a)
A- symbiotic relationship
B- predation
C- symbiotic relationship
D-epiphytsm
E-parasitism
(2b) Tabulate:
beneficial | harmful
A. B
C. E
D
=========================================
4a)
I)Operculum
II)Hind limb
III)Tympanum
IV)Trunk
V-eye
VI-lateral line
VII-dorsal fin
VIII-caudal fin

4bi)
Tabulate
Vertebra
i)they are poikilothermic or cold-blooded animal
ii)they have fins which are used for movement in water
iii)they have naked or moist and glandular skin with no external
scales
iv)they do not show parental care
v)they have a two chambered heart
Vertebrate B
i)they are aquatic animal
ii)they have gills which used for gaseous exchange
iii)the skin is covered by scales but few are with out scale
iv)they show parental care for young onces
v)they have three chambered heart

4bii)
i)they both posses scale
ii)they both posses eyes
iii)they both posses respiratory organs

4ci)
A-amphibian
B-pisces
4cii)
i)they posses fins which are used for movement
ii)they posses swim bladder which posses swim bladder which
enables them to maintain buoyancy in water
iii)they posses lateral line system for detectin of vibration
4di)
i)they posses pigment on their skin which act as a camourplage against it predators
ii)they posses scales on the skin which reduce water loss from the body against its predators
iii)they posses digits or claws use for self defence
4dii)
i)water
ii)land
4diii)
i)they are use as food
ii)they are use for the preparation of local medication

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