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<h2 class="wp-block-heading" id="h-introduction">Introduction</h2>
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<p>Good afternoon, students!<br>Today, we’re diving into <strong>biology past questions</strong> from <strong>UTME</strong> (Unified Tertiary Matriculation Examination) spanning <strong>1978 to 2024</strong>. Our focus will be on three essential topics in biology: <strong>Reproduction, Respiration, and Nutrition</strong> — core characteristics of living organisms. These areas are frequently tested in JAMB and WAEC exams, making them critical for students to master.</p>
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<p>Grab your writing materials as we tackle these questions one by one with explanations.</p>
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<p>You can watch the full class in the video below:</p>
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https://www.youtube.com/watch?v=NUihlHTMz5Q&t=7s
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<h2 class="wp-block-heading" id="h-question-1-excretory-structure-in-earthworm">Question 1: Excretory Structure in Earthworm</h2>
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<p><strong>Question:</strong><br>The excretory structure in an earthworm is the ______.</p>
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<p><strong>Options:</strong></p>
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<ul class="wp-block-list"><!-- wp:list-item -->
<li>A) Malpighian tubule</li>
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<li>B) Flame cell</li>
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<li>C) Nephridium</li>
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<li>D) Kidney</li>
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<h3 class="wp-block-heading" id="h-explanation">Explanation</h3>
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<li><strong>Malpighian tubule:</strong> Found in insects, not earthworms.</li>
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<li><strong>Flame cell:</strong> Found in flatworms (Platyhelminthes).</li>
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<li><strong>Kidney:</strong> Found in mammals, not earthworms.</li>
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<li><strong>Nephridium:</strong> The correct excretory organ in earthworms.</li>
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<p> <strong>Answer: C) Nephridium</strong></p>
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<h2 class="wp-block-heading" id="h-question-2-non-excretory-product">Question 2: Non-Excretory Product</h2>
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<p><strong>Question:</strong><br>Which of the following is <strong>not</strong> an excretory product?</p>
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<p><strong>Options:</strong></p>
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<ul class="wp-block-list"><!-- wp:list-item -->
<li>A) Urine</li>
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<li>B) Sweat</li>
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<li>C) Faeces</li>
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<li>D) Salt</li>
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<h3 class="wp-block-heading" id="h-explanation-0">Explanation</h3>
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<li><strong>Urine</strong> and <strong>sweat</strong> are true excretory products (removal of metabolic waste).</li>
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<li><strong>Faeces</strong> is a product of digestion, not excretion.</li>
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<li><strong>Salt</strong> is part of sweat and urine.</li>
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<p><strong>Answer: C) Faeces</strong></p>
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<h2 class="wp-block-heading" id="h-question-3-organ-closely-associated-with-urine-production">Question 3: Organ Closely Associated with Urine Production</h2>
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<p><strong>Question:</strong><br>Which of the following parts of the mammalian body is most closely associated with the <strong>production of urine</strong>?</p>
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<p><strong>Options:</strong></p>
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<ul class="wp-block-list"><!-- wp:list-item -->
<li>A) Malpighian corpuscle</li>
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<li>B) Urinary bladder</li>
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<li>C) Urethra</li>
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<li>D) Vas deferens</li>
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<h3 class="wp-block-heading" id="h-explanation-1">Explanation</h3>
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<li><strong>Urinary bladder</strong> stores urine, but does not produce it.</li>
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<li><strong>Urethra</strong> transports urine out of the body.</li>
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<li><strong>Vas deferens</strong> is part of the male reproductive system.</li>
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<li><strong>Malpighian corpuscle (renal corpuscle)</strong> is involved in filtering blood in the kidney to form urine.</li>
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<p><strong>Answer: A) Malpighian corpuscle</strong></p>
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<h2 class="wp-block-heading" id="h-question-4-location-of-malpighian-tubules">Question 4: Location of Malpighian Tubules</h2>
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<p><strong>Question:</strong><br>In which group of animals are <strong>Malpighian tubules</strong> found?</p>
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<p><strong>Options:</strong></p>
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<ul class="wp-block-list"><!-- wp:list-item -->
<li>A) Lizard, snail, and frog</li>
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<li>B) Cricket, housefly, and grasshopper</li>
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<li>C) Millipede, centipede, and scorpion</li>
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<li>D) Earthworm, roundworm, and flatworm</li>
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<h3 class="wp-block-heading" id="h-explanation-2">Explanation</h3>
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<p><strong>Malpighian tubules</strong> are excretory structures found in insects, such as crickets, houseflies, and grasshoppers.</p>
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<p><strong>Answer: B) Cricket, housefly, and grasshopper</strong></p>
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<h2 class="wp-block-heading" id="h-question-5-waste-product-of-insects">Question 5: Waste Product of Insects</h2>
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<p><strong>Question:</strong><br>Which of the following is a waste product of insects?</p>
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<p><strong>Options:</strong></p>
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<ul class="wp-block-list"><!-- wp:list-item -->
<li>A) Uric acid</li>
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<li>B) Ammonia</li>
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<li>C) Urea</li>
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<li>D) Carbon dioxide</li>
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<h3 class="wp-block-heading" id="h-explanation-3">Explanation</h3>
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<p>Insects excrete <strong>uric acid</strong> as a nitrogenous waste. It conserves water, an adaptation for their terrestrial life.</p>
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<p> <strong>Answer: A) Uric acid</strong></p>
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<p><mark style="background-color:rgba(0, 0, 0, 0)" class="has-inline-color has-vivid-cyan-blue-color"><strong>Watch more educational videos and past questions:</strong> </mark><a href="https://youtube.com/@allcbts">https://youtube.com/@allcbts</a></p>
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<h2 class="wp-block-heading" id="h-conclusion">Conclusion</h2>
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<p>Understanding <strong>excretion, reproduction, and nutrition</strong> in organisms is essential for excelling in <strong>UTME Biology</strong>. These concepts frequently appear in JAMB, WAEC, and NECO examinations. By practicing past questions like these, students not only prepare for their exams but also strengthen their understanding of core biological processes.</p>
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<p>Stay tuned for more biology tutorials covering <strong>respiration, photosynthesis, and human body systems</strong> to ensure you’re fully prepared.</p>
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