JAMB Biology Repeated Questions 2023 Likely Questions

Preparing for the Joint Admissions and Matriculation Board (JAMB) examination can be a daunting task, especially when it comes to subjects like Biology.

However, one effective strategy to improve your chances of success is to familiarize yourself with past questions and answers.

These questions are often repeated in subsequent exams, giving you an advantage if you have practiced them beforehand.

In this article, we have compiled a selection of randomly repeated JAMB Biology questions to help you test your knowledge and enhance your exam preparation.

1. Which of the following is a homostatic response in humans? A. Withdrawing the hand from a hot object B. The mouth getting watery when food is sighted C. Yawning owing to tiredness D. Shivering in a cold environment
2. The similarity among organisms belonging to the same group will be least within each A. Order B. Family C. Species D. Kingdom
3. In Nigeria, the guinea savanna belt borders the A. Mangrove swamps and the Sahel savanna B. Rainforests and the Sudan savanna C. Desert and the Sudan savanna D. Rainforests and the deserts
4. 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 is A. 40 B. 1000 C. 40000 D. 200000
5. Secondary succession is much faster than primary succession because A. Pioneer colonizers are more in number B. Soil is already present C. Secondary seres require less nutrients D. Species competition is increased
6. 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 practicing crop rotation in agriculture is to A. Maintain soil fertility B. Improve the nutritional value of crops C. Control soil erosion D. Ensure the growth of crops
8. The recycling method of solid waste disposal is unsuitable for A. Organic matter B. Glass C. Plastic D. Metal scraps
9. A non-renewable alternative source of energy is A. Wind generator B. Solar panels C. Nuclear energy D. Hydroelectric power
10. Which of the following is the best explanation for a child who is phenotypically short and born of two tall parents A. The father possesses a gene for shortness B. The mother possesses a gene for shortness C. Nature makes the child short D. Both parents possess the gene for shortness
11. A yellow maize is crossed with a white maize, and the first filial generation produces yellow maize only. The white trait is said to exhibit A. Dominance B. Recessiveness C. Codominance D. Incomplete dominance
12. Angiosperms and gymnosperms belong to the plants group known as A. Schizophyta B. Bryophyta C. Pteridophyta D. Spermatophyta
13. Which of the following are non-green plants? A. Euglena B. Fungi C. Spirogyra D. Angiosperms
14. Sting cells are normally found in A. Flatworms B. Hydra C. Snails D. Paramecium
15. Which of the following are differentiated into true roots, stems, and leaves A. Algae B. Schizophyta C. Pteridophyta D. Bryophyta
16. To facilitate gaseous exchange, breathing roots have A. Stomata B. Mitochondria C. Cuticle D. Lenticels
17. The annulus of fern sporangium helps in A. Spore dispersal B. Conduction of mineral salt C. Trapping of light energy D. Water retention
18. One of the features that adapt Paramecium to its environment is the possession of A. A regular shape B. Two nuclei C. Cilia D. A pellicle
19. In the earthworm, the cocoon is secreted by the A. Chaeta B. Prostomium C. Peristomium D. Citellum
20. The function of maxillipeds in crayfish is to aid A. Walking B. Swimming C. Feeding D. Respiration
21. The respiratory organ in the land snail is the A. Radula B. Mantle C. Tentacle D. Foot
22. The gill rakers of fishes take part in A. Feeding B. Respiration C. Swimming D. Diffusion
23. A wide pith with a ring of conducting tissue is characteristic of the root of A. Sunflower B. Maize C. Bean D. Okra
24. Which of the following is formed immediately after the first product of photosynthesis? A. Lipid B. Starch C. Oxygen D. Sugar
25. One of the accessory organs of the digestive system is the A. Kidney B. Spleen C. Liver D. Lung
26. The element common to protein, carbohydrate, and lipid is A. Hydrogen B. Sulphur C. Nitrogen D. Phosphorus
27. The crown of the mammalian tooth is covered with A. Cement B. Dentine C. Caries D. Enamel
28. In living cells, insufficient oxygen may cause a breakdown of glucose into A. Fatty acids B. Lactic acids C. Glycogen D. Carbon dioxide
29. Which of the following can bring about the greatest increase in the rate of transpiration? A. Increased humidity B. Reduced temperature C. Reduced wind speed D. Reduced humidity
30. In a food chain, each succeeding level in a forward direction represents A. An increase in the number of individuals B. A decrease in the number of individuals C. An increase in the biomass of individuals D. A gain in the total energy being transferred

Conclusion

By practicing these randomly selected repeated JAMB Biology questions, you can assess your understanding of important concepts and enhance your preparation for the upcoming JAMB examination.

Remember to use these questions as a study resource, and consider obtaining past question papers and answers for comprehensive practice. Good luck with your exam!