1.Samantha picks up a plastic bag on his way from school canteen.The following information show how impulses flowW - Optic nerve send impulses about the plastic to the brainX - rain sent impulses to the spinal cord! - rain decided where to throw the plastic bag." - #mpulses are sent to the muscle in your hand

$rrange the se%uence of W&X&!and " to show the correct impulse pathwayA "&!&W&XB W&!&X&"C !&"&X&WD X,W,Z,Y'. (iagram ' shows an e)periment to study the response of seedling.After a few days it is noticed that the radicles bent upwards.Diagram 2Why does the radicle bend upwards?AIt needs water to growBIt needs sunlight to growCRadicle shows positive phototropisDRadicle shows negative hydrotropisFigure 4(a)*. !iagra " shows a food web

Diagram 3Which of the following is the correct food chain?A#addy$Rat$%wl$&rog'#addy$(rasshopper$&rog$%wl )#addy$Rat$*agle$+na,e$&rog!#addy$(rasshopper$&rog$+na,e$Rat+. ,igure +-a. shows a student reading raille map/,igure +-b. shows a cross section of human skin. Which of the following parts involved in ,igure +-a..0 $,igure +-b.1. Table 1 below shows the calorific value of some foods,ood 2uantity 0aloric value3k4read 1 piece 1*anana 1 piece 1*56ilk 1 glass 71Table 18amli had consumed the following food for breakfast9read : * pieces anana : ' pieces 6ilk : 1 glassased on Table l& calculate the calorific value consumed by 8amli for his breakfast.$ +;5 k4 1A 0hanged to glucoseB 0hanged to proteinC 0hanged to amino acidD 0hanged to lactose.17. (iagram 1' shows the process of photosynthesisWater bath at *7o01< ml starch solution F salivaDiagram 12 Which represent P,Q and R> P Q RA Water O)ygen 0arbon dio)ideB 0arbon dio)ide Water O)ygenC Water 0arbon dio)ide O)ygenD O)ygen Water 0arbon dio)ide1?.Tale ! sho"s in#ormation o# three minerals.Mineral Disease due to its deficiency0alcium X#ron Y#odine ZTable 2 $hich o# the #ollo"ing represents X% Y and Z& X Y ZA 8icket Scurvy $naemiaB Scurvy 8icket BoitreC $naemia Boitre Gight blindnessD 8icket $naemia Boitre 1;. 'iagram () sho"s characteristics o# plant S.Diagram 13Which of the following represent S and T>

S TA (urian tree Tap root systemB Brass ,ibrous systemC alsam plant Seed with two cotyledonsD 6aiEe plant Seed with one cotyledon '$ @ime water @itmus paper0Blowing splinter(Sodium hydro)ide solution '1.Which of the following shows the correct order of organisms in an ecosystem>$=opulationHspeciesHcommunity =opulationHcommunityHspecies00ommunityHpopulationHspecies (SpeciesHpopulationHcommunity ''.(iagram 11 shows the classification of flowering plants Diagram 15Which of the following are characteristics of a plant in group X> # ,ibrous root ## Gon-woody stem ###@eaves with network veins #I#ts seed has two cotyledons $# and ## only## and ### only 0### and #I only ( #& ## and ###'*.(iagram 15 shows an e)periment to study absorbption of digested foodWater F Sodium bicarbonateWater weedsDiagram 16 $fter *< minutes the distilled water is tested with enedictCs solution and brick red precipitate is formed.Which of the following statement is the conclusion of the e)periment> $$mylase change starch into glucose 6olecule of glucose diffuses through the wall of visking tube 0Iisking tube represents the semi permeable membrane of small intestine ((istilled water in the beaker represents the bloodstream'+.!iagra -. shows two boys suffering fro a disease due to lac, of a certain nutrient.Diagram 17What is their diet lac,ing of?A&at )Iodine'Iron !#roteinIisking tubeStarch solution F pancreatic amylase(istilled water at*7o0'1 $n ecosystem is formed when$. members ofa population interact with one another . members ofa community interact with one another 0. members ofa species ofliving organisms interact with one another (. different communities interact with one another and with the environment'5Table * shows the digestion of food0arbohydrate Blucose R=rotein$cid aminoS ,at ,atty acid F glycerol TTable 3#dentify the enEymes involved in digestion process shown above R S TA =rotease $mylase @ipaseB $mylase =rotease @ipaseC $mylase @ipase =roteaseD @ipase $mylase =rotease'7 (iagram 1? shows processes in the human digestive system

Diagram 18 Which of the following shows the correct se%uence of organs involved in theprocesses> $ Small intestine H@arge intestineH OesophagusH Stomach@arge intestineH OesophagusH Stomach HSmall intestine 0 Oesophagus HStomachH Small intestineH @arge intestine ( StomachH Small intestineH @arge intestineH Oesophagus'?.(iagram 1; shows a pyramid of number Diagram 19 Which is the following correct from the base of the pyramid numbers to the top>A The number of organisms increases B The siEe of organisms increases C Source of food increase D @ess energy is lostSnakeBirdInsect Plant'; Which of the following shows living things are dependent on non-living things> A=lants carrying out photosynthesis B=lants competing for space C$nimals eating plantsD$nimals eating other animals *< (iagram '< shows a food pyramid.Diagram 20Which types of food are found in level S>$,ruits and vegetables6eat and proteins00ereals and rice(,ats and sugar*1 Which of the following animals has monocular vision>*' =hotosynthesis is a natural process.What is the important of photosynthesis tothe environment># 8educe formation of haEe## #ncrease o)ygen in the atmosphere### 8educes carbon dio)ide in the atmosphere$ # and ## only # and ### only0 ## and ### only( #& ## and ###** (iagram '1 shows a habitat occupied by three types of organisms& X& ! and ". Diagram 21$ *+,0 (*+ Which of the following vitamins are soluble in water>$ Iitamins $ and Iitaminsand 0 0 Iitamins D and J( Iitamins $& (& D and J*1 Which of the following is a function of hydrochloric acid that is found in stomach Kuice> $ Geutralises the alkali from the salivareaks down protein into amino acids 0 Speeds up the production of amylase from the mouth ( =rotects the stomach walls from the enEyme in the stomach *50ommensalism is an interaction between two organisms # which is a form of symbiosis ## where only one organism gains in the interaction ###where one organism is killed by the other$ # and ## only # and ### only0 ## and ### only( #& ## and ###*7. Which of the following shows that light can be refracted>, ++ ** ,CB DA *?.(iagram '' shows the apparatus used to carry out an e)perimentDiagram 22#n which test tube is the potato digested first> AW C!BX D"*;.The organisms shown in (iagram '* are classified into two groupsDiagram 23 Which characteristic can be used for the classification>#Whether the parts of the plant could be eaten or not ##Whether the plants carry out photosynthesis or not###Whether the plants produce flowers or not $ # and ## only 0 ## and ### only # and ### only ( #& ## and ###+A A&D&,&B C A&D&,&BB D&,&A&B D D&,&B&AD : heat a leaf in alcohol, : soak a leaf in waterB : add a few drops of iodine to a leafA : boil a leaf in water# : place a leaf on a white tile