Nabteb Biology pract 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 ================================== 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 ================================== 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 ================================== enjoy