Biology 2024 Jamb Examination

Biology 2024 Jamb Examination
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Question 31

Which of the following processes takes place in the carbon cycle?
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Combustion is a key process in the carbon cycle. It releases carbon dioxide into the atmosphere when fossil fuels, wood, or organic matter are burned. Evaporation and transpiration are water cycle processes, while nitrification belongs to the nitrogen cycle.
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Question 32

Which of the following plants shows hypogeal germination?
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Maize shows hypogeal germination, where the cotyledons remain below the soil surface while the shoot grows upward. In contrast, plants like beans and castor oil exhibit epigeal germination, where cotyledons are pushed above the soil.
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Question 33

In vascular plants, xylem tissue is responsible for
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Xylem tissue transports water and dissolved mineral salts from the roots to other parts of the plant. Phloem is responsible for translocation of food, while storage of sugar and hormone transport are carried out by other tissues and processes.
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Question 34

The causative agent of tuberculosis is
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Tuberculosis is caused by the bacterium *Mycobacterium tuberculosis*. It primarily affects the lungs but can also spread to other organs. Viruses, protozoa, and fungi cause other diseases, but TB is strictly bacterial in origin.
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Question 35

Which of these is a respiratory organ in mammals?
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The lungs are the primary respiratory organs in mammals, where gas exchange takes place. Oxygen enters the blood, and carbon dioxide is expelled. The skin is used in some lower animals, the mouth is an entry point but not a respiratory organ, and the heart functions in circulation, not respiration.
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Question 36

Which of the Nigeria states is Northern guinea savanna located?
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The Northern Guinea savanna is mainly located in states like Kwara, Niger, Kaduna, and Kogi. It is a transitional vegetation zone between the forest and the Sudan savanna.
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Question 37

Darwin's theory of evolution is based on the principle of
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Darwin's theory emphasizes natural selection, where organisms with favorable traits survive and reproduce more successfully, leading to gradual evolution of species.
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Question 38

Similar structures that are modified to work in different ways in different organisms are referred to as
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Homologous structures are body parts with the same structural origin but different functions, showing divergent evolution (e.g., forelimbs of humans, bats, and whales).
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Question 39

One of the ways of controlling Schistosomiasis is by
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Schistosomiasis is transmitted by freshwater snails. Controlling the disease involves destroying water snails and water weeds to break the transmission cycle.
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Question 40

The central nervous system comprises of
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The central nervous system (CNS) is made up of the brain and spinal cord, which coordinate and process information in animals.
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Biology 2024 Jamb Examination
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