WAEC GCE Biology Practical Questions and Answer – NOV/DEC 2017 Expo Runz.
A- symbiotic relationship
C- symbiotic relationship
II-Spine of scapula
1bii)Ball and socket joint
-It holds the upper limbs to the axial skeleton
-Attachment of muscles.
III. Bubbles of gas
IV. test tube
i)To show that oxygen is given off During photosynthesis.
iv. The oxygen can be tested by bringing a glowing splincter close to it,which will be rekindled.
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
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
i)they both posses scale
ii)they both posses eyes
iii)they both posses respiratory organs
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
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
i)they are use as food
ii)they are use for the preparation of local medication
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