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    Home MCQ examination Jamb Biology 2024

    Biology 2024 Jamb Examination

    Biology 2024 Jamb Examination
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    1...89101112

    Question 91

    The cone in the retina of eye is an example of
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    The cone in the retina is a specialized cell responsible for color vision. Cells are the basic units of life, tissues are groups of cells, organs are composed of tissues, and systems are composed of multiple organs.
    Not clear enough?

    Question 92

    The part of the flower that develops into seed is
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    The ovule is the female reproductive part of a flower that, after fertilization, develops into a seed. Pedicel is the flower stalk, petal attracts pollinators, and style is part of the pistil leading to the ovary.
    Not clear enough?

    Question 93

    Which of these is a medium of transportation in plants?
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    Cell sap, found in the vacuoles, acts as a medium for transporting substances like nutrients and ions within plant cells. Nucleus, mitochondrion, and ribosome have other specialized functions.
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    Question 94

    Which of the following is a viral disease?
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    Measles is caused by a virus (the measles virus). Syphilis is bacterial, cholera is caused by *Vibrio cholerae*, and typhoid is caused by *Salmonella typhi*.
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    Question 95


    Use the diagram above to answer the question that follows
    The experiment is set up to determine the presence of
    Show explanation Expand Question
    The experiment is designed to test for starch in leaves, which indicates photosynthesis has occurred. The leaf is boiled in water, then alcohol is used to remove chlorophyll, followed by iodine solution which turns blue-black in the presence of starch.
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    Question 96

    The type of circulatory system found in arthropods and some molluscs is
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    Arthropods and some molluscs have an open circulatory system, where blood is not entirely contained within vessels but flows into body cavities to directly bathe organs. Closed circulatory systems, single, and double circulation are found in other animal groups.
    Not clear enough?

    Question 97

    In plants, the main excretory product produced during metabolism is
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    Carbon dioxide (CO₂) is the main excretory product of plant metabolism, produced during cellular respiration. Oxygen is a byproduct of photosynthesis, alkaloids are secondary metabolites, and mucilage has structural and water-retention roles.
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    Question 98


    Use the diagram above to answer the questions that follow
    The part labelled I is
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    The oviduct, also known as the fallopian tube, is a muscular, J-shaped passage that transports eggs from the ovaries to the uterus. Fertilization usually takes place within this tube. Each side of the uterus has one oviduct, playing a crucial role in the female reproductive system.

    The placenta is a temporary organ that develops inside the uterus during pregnancy. It connects to the baby through the umbilical cord, which delivers essential nutrients and oxygen, supporting the growth and development of the fetus.

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    Question 99

    Comparative anatomy to study evidence for evolution depends on
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    Comparative anatomy often examines the pentadactyl (five-fingered) limb structure in vertebrates. Similarity in this structure across species provides evidence of common ancestry and evolutionary relationships.
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    Question 100

    Iron is an essential nutrient in plants because it
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    Iron is essential for plants as it is a key component in chlorophyll synthesis and is involved in various enzyme functions related to protein production. Lack of iron leads to chlorosis and poor growth.
    Not clear enough?
    1...89101112

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