JAMB 2018 Biology Question: 40 Likely/Possible JAMB 2018 CBT Questions in March JAMB Biology Possible Exam Question to Revise With.1 Which of the following is a homostatic response in humans?A. Withdrawing the hand from a hot objectB. The mouth getting watery when food is sightedC. yawning owing to tirednessD. shivering in a cold environment2. The Mambila plateau is a unique Nigerian biome located inA. Plateau stateB. Borno stateC. Taraba stateD. Benue state3. In Nigeria, the guinea savanna belt borders theA. mangrove swamps and the sahel savannaB. rainforests and the sudan savannaC. desert and the sudan savannaD. rainforests and the deserts4. The population density of Tridex in an abandoned square farm land of side 200 m was found to be 5 plants per m . The population size of the plant on the farm isA. 40B. 1000C. 40000D. 2000005. Secondary succession is much faster than primary succession becauseA. pioneer colonizers are more in numberB. soil is already presentC. secondary seres require less nutrientsD. species competition is increased6. Which of the following is used to test for the presence of lime in a soil sample?A. H2SO(aq)B. NaOH(aq)C. HCl(aq)D. HNO3(aq)7. The importance of practising crop rotation in agriculture is toA. maintain soil fertilityB. improve the nutritional value of cropsC. control soil erosionD. ensure the growth of crops8. The recycling method of solid waste disposal is unsuitable forA. organic matterB. glassC. plasticD. metal scraps9. A non – renewable alternative source of energy isA. wind generatorB. solar panelsC. nuclear energyD. hydroelectric power10. Which of the following is the best explanation for a child who is phenotypically short and born of two tall parentsA. The father possesses a gene for shortnessB. The mother possesses a gene for shortnessC. Nature makes the child shortD. Both parents possess gene for shortness11. A yellow maize is crossed with a white maize and the first filial generation produce yellow maize only. The white trait is said to exhibitA. dominanceB. recessivenessC. codominanceD. incomplete dominance12. Angiosperms and gymnosperms belong to the plants group known asA. schizophytaB. bryophytaC. pteridophytaD. spermatophyta13. Which of the following are non-green plants?A. EuglenaB. FungiC. SpirogyraD. Angiosperms14. Sting cells are normally found inA. FlatwormsB. HydraC. SnailsD. Paramecium15. Which of the following are differentiated into true roots, stems and leavesA. AlgaeB. SchizophytaC. PteridophytaD. Bryophyta16. To facilitate gaseous exchange, breathing roots haveA. stomataB. mitochondriaC. cuticleD. lenticels17. The annulus of fern sporangium helps inA. spore dispersalB. conduction of mineral saltC. trapping of light energyD. water retention18. One of the features which adapts Paramecium to its environment is the possession ofA. a regular shapeB. two nucleiC. ciliaD. a pellicle19. In the earthworm, the cocoon is secreted by theA. chaetaB. prostomiumC. peristomiumD. citellum20. The function of maxillipeds in crayfish is to aidA. walkingB. swimmingC. feedingD. respiration21. The respiratory organ in the land snail is theA. radulaB. mantleC. tentacleD. foot22. The gill rakers of fishes take part inA. feedingB. respirationC. swimmingD. diffusion23. A wide pith with a ring of conducting tissue is characteristic of the root ofA. sunflowerB. maizeC. beanD. okra24. Which of the following is formed immediately after the first product of photosynthesis?A. LipidB. StarchC. OxygenD. Sugar25. One of the accessory organs of the digestive system is theA. KidneyB. SpleenC. liverD. lung26. The element common to protein carbohydrate and lipid isA. hydrogenB. sulphurC. nitrogenD. phosphorus27. The crown of the mammalian tooth is covered withA. cementB. dentineC. cariesD. enamel28. In the living cells, insufficient oxygen may cause a breakdown of glucose intoA. fatty acidsB. lactic acidsC. glycogenD. carbon dioxide29. Which of the following can bring about the greatest increase in the rate of transpiration?A. Increased humidityB. Reduced temperatureC. Reduced wind speedD. Reduced humidity30. In a food chain, each succeeding level in a forward direction representsA. an increase in the number of individualsB. a decrease in the number of individualsC. an increase in the biomass of individualsD. a gain in the total energy being transferred31. The disaster that would have the least destructive impact on animal life and balance in nature isA. chemical pollutionB. forest firesC. oil spillageD. grasshopper pests32. The legs and beak of an egret resemble those of the heron because theyA. both feed on fishesB. are both birdsC. occupy similar nicheD. occupy the same trophic level33. The factors that determine the distribution of vegetation zones areA. temperature, light, rain and humidityB. light, humidity, air and mistC. temperature, light, air and humidityD. humidity, snow, frost and dew34. A cross between an albino female and a genetically normal male will result in offspring that areA. all albinoB. all phenotypically normalC. all genetically normalD. half albino and half normal35. The pollutants that contribute to the depletion of the ozone layer in the atmosphere areA. radioactive materialsB. oxides of sulphurC. oxides of carbonD. chlorofluorocarbons36. The surest way to combine the best qualities of both parents in the offspring is byA. cross-breedingB. inbreedingC. selective breedingD. pure breeding37. Blood grouping in human beings is derived from combinations ofA. two different allelesB. four different allelesC. three different allelesD. two different genes38. The older fossil-bearing rocks, in contrast to the more recent ones, are more likely to containA. animal rather than plant remainsB. invertebrates rather than birdsC. flowering plants rather than mossesD. reptiles rather than fishes39. In a group of male Agama lizards, the one with the brightest head colour is theA. dominantB. youngestC. oldestD. largest40. Example of water-borne and sex linked diseases areA. taeniasis and malariaB. cholera and gonorrhoeaC. typhoid and syphilis Trending: How to Login JAMB Support Centre, Get Solutions to all Problems D. dracunculiasis and haemophilia Related Posts JAMB 2018 Use of English Questions: 80+ Likely/Possible JAMB 2018 Questions in March Free 30+ Likely/Possible JAMB 2018 Commerce Questions and Answers for March Award of HND Certificate Scrapped, Polytechnics to become Campuses of Proximate Universities. 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