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Cervical vertebra The atlas and the axis are the first and second cervical vertebra respectively. 📌 ATLAS • It has a highly reduced centrum. • It has a highly reduced spine • It has a large neural canal • It has two Large depressions on its anterior surface which fit into two projections at the base of the skull so, enabling the head to nod • It has a reduced transverse process 📌 AXIS • It has a prominent spine • It has a reduced transverse of • It has a broad and flat centrum • It has a large neural canal • It has an elongated odontoid process which fits into the neural canal of the atlas, thus, allowing rotational movement of the head.

1. Which vertebra has has a projection called odontoid process A. Axis✅ B. Atlas C. Lumbar D. Thoracic 2. The part of the vertebra through which spinal cord passes is the_ A. Neural canal✅ B. Neural Arch C. Vertebratal canal D. Centrum 3. The axial skeleton is found in the_ A. Skull, ribs, vertebratal column and breastbone.✅ B. Skull, humerus, vertebral column and ribs C. Breastbone, clavicle, ribs and vertebral column D. Femur, sternum, ulna and skull. 4. The axial skeleton of a mammal does not include the_ A. Limbs✅ B. Tail C. Skull D. Back 5. Exoskeleton is not found in the _ A. Earthworm✅ B. Mosquito larva C. Caterpillar D. Termites 6. The major difference between the atlas and the axis of the cervical vertebra is that only the axis possess A. Facets for attachment to the skull B. An odontoid process.✅ C. A long neural spine D. A large transverse process 7. What is the characteristics of the sacrum? A. The bones are flattened out B. The transverse process are small and slender C. The bones are fused together✅ D. None of the above 8. The long bone of the thigh is A. Femur✅ B. Humerus C. Ulnar D. Stapes 9. The liquid that serves as a lubricant to the mammalian joint is the____ A. Seminal fluid B. Spinal fluid C. Synovial fluid✅ D. Amniotic fluid 10. Muscles are attached to bones by____ A. Tendons✅ B. Ligaments C. Cartilage D. Membranes 11.The blood circulatory system of vertebrates consists of A) heart, arteries, capillaries and veins✅ B) heart, aorta, capillaries and veins C) heart, aorta, arteries and veins D) heart, vena cava, arteries, and veins 12.Which of the following forms about 55% of the volume of the blood in man? A) leucocytes B) platelets C) plasma✅ D) erythrocytes 13. A plant tissue that carries water and mineral salts is the A) cambium B) xylem✅ C) cortex D) phloem 14. Oxygen is taken round the body as ____ A. Oxyhaemoglobin✅ B. Haemoglobin C. Blood D. Lymph 15. The anaerobic fermentation of glucose molecule yields____ A. Pyruvic acid and alcohol✅ B. 38 ATP molecules C. Water and carbondioxide D. 2 ATP molecules and alcohol 16. Yeast respires anaerobically to convert simple sugars to carbon dioxide and_ A. Acid B. Oxygen C. Water D. Alcohol✅ 17. Fatigue of leg muscles may occur after riding many kilometers on a bicycle because of__ A. Insufficient glucose B. Excess carbondioxide C. Excess protein D. Insufficient oxygen✅ 18. To take in air into the lungs the diaphragm must be A. Dome shaped B. Flattened✅ C. Oblique D. Normal E. None of the above. 19. Which of the following is not associated with excretion in mammals A. Urea B. Faeces ✅ C. Bowman's capsule D. Carbon dioxide 20. The part of the kidney where each tubule begins is called A. Capsule ✅ B. Cortex C. Glomerulus D. Urether https://t.me/JustifiedAcademy

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*QUESTIONS FROM TODAY'S JAMB EXAM* Biology 1. Dental formula of man consist of (A) i 2/2, c2/2, pm2/2, m3/3 (B) i1/1, c2/2, pm2/2, m3/3 (C) i2/2, c1/1, pm3/2, m2/2 (D) i2/2, c1/1, pm2/2, m2/2 (E) i2/2, c1/1, pm2/2, m3/3🔥 2. During digestion of food, passage of chyme through the duodenum enables it to become a watery liquid called__ (A) Digested food (B) Chymatic product (C) Chyle🔥 (D) Soluble food (E) Dissolved food 3. Emulsification of fat and oils is caused by__ (A) Lipase (B) Ptyalin (C) Trypsin (D) Maltase (E) Bile🔥 4. Every mammal has (A) One Kidney (B) Two pairs of Kidneys (C) One pair of Kidneys🔥 (D) Four Kidneys (E) None of the above 5. Faeces is removed from the body in a process called (A) Digestion (B) Egestion 🔥(C) Elimination (D) Excretion (E) Evacuation 6. Glomerulus is found in the__ (A) Ovary (B) Testes (C) Brain (D) Kidney 🔥e). Stomach 7. In the respiratory system of man, diffusion of gases takes place in (A) Trachea (B) Bronchi (C) Alveoli 🔥(D) Bronchioles (E) None of the above 8. Incisors are used for (A) Tearing food (B) Cutting food 🔥(C) Grinding food (D) Shearing food (E) Crushing food 9. Nematocysts are produced by special cells found in (A) Nematodes (B) Annelids (C) Platyhelminthes (D) Cnidarians (Coelenterates)🔥 (E) Arthropods 10. One of the following is not a function of the skin (A) Excretion (B) Protection (C) Homeostasis (D) Reproduction🔥(E) Absorption of vitamin D Like 10 Dislike 0 2 hours ago BIOLOGY QUESTION 1. Dental formula of man consist of (A) i 2/2, c2/2, pm2/2, m3/3 (B) i1/1, c2/2, pm2/2, m3/3 (C) i2/2, c1/1, pm3/2, m2/2 (D) i2/2, c1/1, pm2/2, m2/2 (E) i2/2, c1/1, pm2/2, m3/3🔥 2. During digestion of food, passage of chyme through the duodenum enables it to become a watery liquid called__ (A) Digested food (B) Chymatic product (C) Chyle🔥 (D) Soluble food (E) Dissolved food 3. Emulsification of fat and oils is caused by__ (A) Lipase (B) Ptyalin (C) Trypsin (D) Maltase (E) Bile🔥 4. Every mammal has (A) One Kidney (B) Two pairs of Kidneys (C) One pair of Kidneys🔥 (D) Four Kidneys (E) None of the above 5. Faeces is removed from the body in a process called (A) Digestion (B) Egestion 🔥(C) Elimination (D) Excretion (E) Evacuation 6. Glomerulus is found in the__ (A) Ovary (B) Testes (C) Brain (D) Kidney 🔥e). Stomach 7. In the respiratory system of man, diffusion of gases takes place in (A) Trachea (B) Bronchi (C) Alveoli 🔥(D) Bronchioles (E) None of the above 8. Incisors are used for (A) Tearing food (B) Cutting food 🔥(C) Grinding food (D) Shearing food (E) Crushing food 9. Nematocysts are produced by special cells found in (A) Nematodes (B) Annelids (C) Platyhelminthes (D) Cnidarians (Coelenterates)🔥 (E) Arthropods 10. One of the following is not a function of the skin (A) Excretion (B) Protection (C) Homeostasis (D) Reproduction🔥(E) Absorption of vitamin D [ *CHEMISTRY* 🤌🤌 1. Forces that arise as a result of the mobility of electrons include: - D. Van der Waals forces 2. Cellulose and starch are classified as: - D. Carbohydrates 3. Zinc sulphide is used in: - A. Germicide 4. The radioisotope used in archaeology is: - C. Carbon-14 5. The hydrogenation of benzene to cyclohexane is called: - D. Aromatization 6. BaSO4 is: - B. Insoluble salt 7. CxH12.... what is x in the alkyne of this compound. - B. 6 8. Heating of sodalime with CH3CH2CH2COONa produces: - C. Pentane 9. The sulphide used in coating electric fluorescent tubes is: - C. Zinc sulphide 10. Oxidation of a secondary alkanol will give: - A. Propanoic acid 11. If the pressure is decreased in the reaction PCl5(g) -> PCl3(g) + Cl2(g), the yield will increase for: - B. PCl3 12. In the presence of water, anhydrous cobalt(II) chloride turns: - C. Blue to pink 13. The Van der Waals' forces are dominant intermolecular forces in: - A. Ammonium chloride 14. The method suitable for separating suspended particles in a liquid is: - C. Centrifugation

34) Which of the following is a primary constituent of crude oil? A. Pentane✅ B. Ethanol C. Heptane D. Methane   35) What is the main source of carbon monoxide (CO) in urban areas? A. Volcanic eruptions B. Vehicle emissions✅ C. Forest fires D. Industrial processes 36) What is the empirical formula of a compound containing 40.00% carbon, 6.67% hydrogen, and 53.33% oxygen by mass? A. C4H8O4 B. CH2O✅ C. C2H4O2 D. C3H6O3 37) Which separation technique is used to separate different pigments in a mixture based on their affinity for a stationary phase and a mobile phase? A. Chromatography✅ B. Filtration C. Decantation D. Distillation   38) What is the common name for ethanoic acid? A. Acetic acid✅ B. Butyric acid C. Propionic acid D. Formic acid   39) What type of reaction is involved in the formation of alkanols from alkenes? A. Elimination reaction B. Redox reaction C. Substitution reaction D. Addition reaction✅   40) What is the mass percentage of carbon (C) in methane (CH4)? (The molar mass of carbon is approximately 12 g/mol.) A. 25% B. 12% C. 75%✅ D. 50% 41) Which of the following is a common property of non-metals? A. Exist as solids at room temperature B. Tend to gain electrons in chemical reactions✅ C. High thermal conductivity D. Readily form cations in chemical reactions   42) What is the symbol used to represent an alpha particle? A. α✅ B. γ C. δ D. β   43) When a substance is oxidized, it A. Loses electrons✅ B. Gains oxygen atoms C. Gains electrons D. Loses protons (H+ ions)   44) A blue litmus paper turns red when dipped into a solution. What does this indicate about the solution? A. The solution is basic B. The solution is neutral C. The solution is acidic✅ D. The litmus paper is faulty   45) Which of the following compounds is an example of an electrovalent bond? A. NaCl (sodium chloride)✅ B. CO2 (carbon dioxide) C. H2O (water) D. CH4 (methane) 46) If gas A has a molar mass of 32 g/mol and gas B has a molar mass of 64 g/mol, what is the ratio of their diffusion rates? A. 2:1✅ B. 1:2 C. 1:1 D. 1:4 47) The contact process is used for the industrial production of A. sulfuric acid (H2SO4)✅ B. Hydrochloric acid (HCl) C. Sodium hydroxide (NaOH) D. Calcium oxide (CaO) 48) Which of the following is a unique property of water compared to other liquids? A. It is a poor solvent B. It does not evaporate C. It expands when freezing✅ D. It has a low heat capacity 49) Sodium reacts vigorously with water to produce A. Sodium chloride (NaCl) and oxygen gas (O2) B. Sodium nitrate (NaNO3) and water (H2O) C. Sodium hydroxide (NaOH) and hydrogen gas (H2)✅ D. Sodium oxide (Na2O) and hydrogen gas (H2)   50) At room temperature and standard pressure,  chlorine gas is in which state of matter? A. Plasma B. Solid C. Liquid D. Gas✅