2023 JAMB BIOLOGY PAST QUESTIONS AND ANSWERS

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Jamb Biology

2023 JAMB BIOLOGY PAST QUESTIONS AND ANSWERS

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Category: Jamb Biology 2023

1. The difference between the cell wall of a plant cell and animal cell is that

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2. In mammals, digestion of starch starts in the

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3. In the process of pollination of a flowering plant, the pollen grain must touch this structure to start off.

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4. All birds have

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5. The list of important types of supporting tissues in plant does not include

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6. Bones of birds are modified for flight by

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7. The waste product of plant like glycosides, tannins, alkaloids and plant oils may be stored in the

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8. The part of the alimentary system of bird where grinding of maize occurs is

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9. To study the structure of mammalian kidney in a secondary school you need

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10. The following are some examples of food chain in the savanna terrestrial ecosystem except

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11. The mitochondrion consists of

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12. In amoeba, the ectoplasm is bounded by a thin membrane known as the

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13. Centipedes are

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14. Odontophore is a skeletal structure in the phylum of

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15. Wattle is a name of a structure found in

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16. One of these is not a feature of the caudal vertebrae in mammal

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17. The inner ear has two types of coiled structure called cochlea which

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18. The viruses are the smallest known organisms and are divided into two parts; the outer part and the inner part. The outer part is protein and the inner part is

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19. The thallus of a lichen consists of

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20. The palisade parenchyma is found in

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21. Increasing complexity due to multicellularity first appeared in this animal group

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22. In the angiosperms, the sieve tube members are living non-nucleated, but they are usually accompanied by

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23. Abscisic acid is a chemical that prepares plants for

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24. The formula below represents

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25. In any population, any specific allele will mutate at one time or another, usually to a non-functional or harmful form. The proportion of gametes carrying new mutant alleles of a given locus is called

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26. In mosses, the sporophyte generation is highly prominent producing spores in a cone-like

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27. When Sudan 111 solution is boiled with a solution of food substances, it gives a color black precipitate showing the presence of

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28. Plants adapted to life in salty marsh are known as

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29. A circulatory system that does not allow mixing of oxygenated blood in the mammalian heart is referred to as

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30. In a pyramid of numbers, it is common to have …… with the smallest of individuals

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31. From the following list of types of mutation, identify the one that is hereditary

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32. Which of these would not be a limiting factor in photosynthesis?

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33. In a cell digestive enzymes mostly occur in

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34. Which of these is not a lipid?

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35. Phototropism is

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36. The site of protein synthesis in a cell is

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37. On storage, the sweetness of corn is lost. This is because

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38. The eye worm is known as

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39. Which of these plants is not a pitcher plant?

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40. One of these arthropods is a carrier of viruses and other microorganisms

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