Question 1In man, gas exchange occurs in theA.heartB.white blood cellsC.lungsD.kidneyObjective Show full explanation
Question 2Which of the following organelles is used for locomotion in Paramecium?A.PseudopodiumB.irichocystC.ciliumD.pellicleObjective Show full explanation
Question 3Which of the following is not true of the nucleus of a living cell? it containsA.ChromosomesB.nucleusC.nucleoplasmD.ribosomesObjective Show full explanation
Question 4Which of the following describes an example of fertilization in higher organism? A.Fusion of sperm and egg nucleiB.Ejaculating of sperm into a female bodyC.Male gametes germinating in the pollen tubeD.A pollen grain landing on a sticky stigmaObjective Show full explanation
Question 5Trees in savannah habitats usually have heavy thick bark which mainly ...... A.Reduces the rate of transpirationB.Protect them from the scorching sunC.Protect them from heavy windsD.Resist bush firesObjective Show full explanation
Question 6The epidermis of the mammalian skin is an example of a tissue because the cells A.Prevent light from passing through themB.Have similar structure and functionC.Prevent excessive loss of waterD.Are impregnated with keratinObjective Show full explanation
Question 7The network of double membrane that helps to convey materials through the cytoplasm is the A.plasma membraneB.vascular membraneC.nuclear membraneD.endoplasmic reticulum Objective Show full explanation
Question 8In aerobic respiration, oxidation phosphorylation takes place in the A.cytoplasmB.mitochondriaC.lysosomeD.vacuolesObjective Show full explanation
Question 9The ability of organisms to maintain a constant internal environment is known asA.dieresisB.endosmosisC.plasmolysisD.homeostasisObjective Show full explanation
Question 10Joint skeleton is absent in the A.cockroachB.spiderC.millipedeD.snailObjective Show full explanation
Question 11The plantain reproduces asexually by A.sporesB.budsC.fragmentsD.suckerObjective Show full explanation
Question 12Mucors and spirogyra can be put in the same group because they A.are unicellularB.have spores that are dispersed by windC.reproduce sexuallyD.have bodies made up of thallus and filaments alternatively Objective Show full explanation
Question 13Which of the following constitutes the main internal tissues of a leaf?A.cuticleB.mesophyll C.vascular tissueD.lower epidermis Objective Show full explanation
Question 14Which of the following is an autotrophic mode of nutrition?A.chemosynthesis B.saprophtism C.parasitism D.symbiosis Objective Show full explanation
Question 15Which of the following structures differentiates an animal cell from a plant cell?A.ribosomes B.cell membraneC.chloroplast D.mitochondrionObjective Show full explanation
Question 16The changes in colour of chameleon serves as a means of A.attraction to the opposite sex B.repulsion of the enemyC.a camouflage from a predator D.regulation of body temperatureObjective Show full explanation
Question 17The amount of starch in a germinating seed decreases because the starch is used to upA.For respiration and building up of cellsB.to build cellulose cell wallC.to develop meristematic tissuesD.for the production of enzymesObjective Show full explanation
Question 18The purpose of treating poor soil with lime is to increase the quantity ofA.NitrogenB.phosphorusC.calciumD.sulphurObjective Show full explanation
Question 19A meal consisting of yam and a lot of vegetables is not balanced because it does not contain A.CarbohydratesB.proteinsC.vitaminsD.mineralsObjective Show full explanation
Question 20During blood transfusion, agglutination may occur a a result of the reaction betweenA.similar antigens and antibodiesB.contrasting antigens and antibodiesC.two different antigensD.two different antibodiesObjective Show full explanation
Question 21Species can be defined as the group or organisms thatA.resemble each other and live in the same habitatB.are of common origin and are always found together C.resemble each other and can interbreed freelyD.resemble each other and occupy the same nicheObjective Show full explanation
Question 22Which of the following represents the phenotypic ration, when a plant Rr is crossed with another plant Rr assuming the gene R for a round seed is dominant and wrinkled r is recessive?A.1:2:1B.2:2:1C.3:2D.3:1Objective Show full explanation
Question 23The order of food passage in the digestive system isA.Ileum-Cecum-Colon-RectumB.Ileum-Colon-Cecum-RectumC.Colon-Ileum-Cecum-RectumD.Colon-Cecum-Ileum-RectumObjective Show full explanation
Question 24Sickle-cell anaemia is a:A.Genetically modified disease.B.Biotechnological disease.C.Nutritionally deficient disease.D.Genetic disorderObjective Show full explanation
Question 25The mode of nutrition exhibited by a tapeworm is ___.A.SymbioticB.SaprophyticC.ParasiteD.HolozoicObjective Show full explanation