Nabteb 2016 Biology Practical Answers

Nabteb Biology practical answers
==========================
(1i) it essential for photosynthesis because it aids chlorophyll
formation
(1ii) it is nucleus
(1iii) adenosine triphosphate(ATP)
(1iv) it aid exchange of gas and excretion in plant
(1v) hepatic artery
(1vi)
a)water
b)latex
c)oxygen
d)oils and rasins
(1vii)
-it aids osmoregulation
-it also helps in excretions
(1viii)
-elephant tree
-gactus tree
(1ix)
-they are protaineous in nature
-they accelerate the reate of chemical reaction
(1x)
the process is homeostasis
(1xi)
-nose
-eye
-ear
-skin
(1xii) X and Y chromosomes (sex chromosomes)
(1xiii) the calyx
(1xiv)
-yellow fever
-chinken pox
(1xv)
-through the water we drink
-through the food we eat
==================================
(2a)
– specimen A is ground nut plant
– specimen B is maize plant
(2b)
A -net venation
B -parallel venation
(2c)
A -epipeal permination
B -hypogeal permination
(2d) the reaming residue of cowpen or ground nut plant improve
the organic matter of the soil when it decay
(2e)
A -fat and oil
B -carbonhydrate
(2f)
TABULATE
SPECIMENS A
i)possession of rough vein
ii)the leaf has parallel vein
iii)the surface of the leave is rough
iv)the veins are scattered
SPECIMENS B
i)possession of smooth vein
ii)the leaf has net vein
iii)the surface of the leaf is smooth
iv)the veins are well arranged.
==================================
(3a) Specimens C is scapula of small mammal
(3b) it is found around the shoulder in animal
(3c) it aids the attachment of the muscles and ligaments that
provide firm support for the fore limbs
(3d)
i)their boches are covered with hairs
ii)they have two pairs of limbs
iii)they are homoiothemic or warm blooded animal in nature
iv)they have a well developed brain
(3e)
DRAWING
8 TO 10CM LONG
click the link
VIEW THE DIAGRAM
==================================
(4a)
specimen D is tilapia fish
specimen E is toad
(4bi)
D -fresh water
E -water or land
(4bii)
D -fishes
E -amphibian
(4c)
TABULATE
SPECIMENS D
i)fins present
ii)limb absent
iii)tail present
iv)scales present
SPECIMENS E
i)fins absent
ii)limbs present
iii)tail absent
iv)scales absent
4e)
DRAWING 8 TO 10CM LONG
CLICK HERE TO VIEW THE IMAGE
==================================
(5a)
TABULATE
ECOLOGICAL FACTOR
i)amount of rain fall
ii)wind speed
iii)temperature
iv)tubidity
v)atmospheric pressure
INSTRUMENT USED
i)rain guage
ii)anenometre
iii)thermometer
iv)sacchi disc
v)barometer
(5bi)
zooplankton——>cray fish——>tilapia——>king fishers
(5bii)
i)producer ——> zooplankton
ii)tetiary consumer ——> kingfishers
==================================
Completed!!

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