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O Level Biology MCQs, Quiz Online Tests pdf Download

Learn O level biology quiz, multiple choice questions (MCQ) and answers to practice biology tests online for e-learning. Free study guide has MCQs to help in O level biology, International biology, AP biology exam, CLEP biology examination, Cambridge GCE biology and Olympiad biology questions. Attempt biology multiple choice questions on O Level Biology quiz online MCQs on chapters listed in order of importance. The MCQ topics in this student portal are what is biology, biotechnology, nutrition, ecology, molecular biology, biological science and many other topics as:

O Level Biology Tests & Quizzes

Practice study guides and quizzes with O level biology online tests. Free worksheets has multiple choice questions with O Level Biology tests online with quiz questions answers for interactive e-learning. The MCQ topics are cell structure, photolysis, human body, human anatomy, body parts and system, and many other biology topics as:

  1. Mammalian Skin
  2. Photosynthesis in Plants
  3. O Level Biology
  4. Mode of action of heart
  5. Epigeal & Hypogeal Germination
  6. Brain of Mammal: Forebrain
  7. Kidneys as Osmoregulators
  8. Parts of Flower
  9. Features of sexual reproduction in animals
  10. Structure of a wind pollinated flower
  11. Stomata & Functions
  12. Red Blood Cells & Haemoglobin
  13. Gastric Juice
  14. Circulatory system
  15. Functions & Composition
  16. Heat Loss Prevention
  17. Natural Vegetative Propagation in Flowering Plants
  18. Classification of Enzymes
  19. Aerobic respiration and its waste
  20. Biotechnology & Fermentation Products
  21. Photolysis
  22. Learning with Biology
  23. Poppies, Opium & Heroin
  24. Microorganisms
  25. Physical Environment: Water
  26. Organ Transplantion & Rejection
  27. Antibiotics: Penicillin Production
  28. Glucose formation
  29. Deforestation and Pollution
  30. Spinal Cord & Nerves
  31. Conditions Essential for Photosynthesis
  32. Types of Drugs
  33. Sensitivity in Biology
  34. Blood Platelets
  35. Structure of Cell & Protoplasm
  36. Fertilization & Post Fertilization Changes
  37. Biology Practice Test
  38. What is Respiration
  39. Fungi: O Level Biology
  40. Hormones: Endocrine Glands
  41. Reproduction in Plants: Pollination
  42. GCSE Biology
  43. Voluntary & Reflex Actions
  44. Nutrition Vitamins
  45. Conservation: Renewable Resources
  46. Anemia & Minerals
  47. Soil Erosion
  48. Human Respiration
  49. Asexual reproduction
  50. Blood & Plasma
  51. Structure of an Insect Pollinated Flower
  52. College Biology
  53. Free Online Biology
  54. Average Daily Mineral intake
  55. Vitamin Deficiency
  56. Biotic & Abiotic Environment
  57. Function of Assimilation
  58. Condensation Reaction
  59. Biology Online
  60. Biology Basics
  61. Digestion Process
  62. Pollution: Sewage as Cause
  63. Epidermis & Homeostasis
  64. Function of Enzymes
  65. Brain of Mammal: Hindbrain
  66. Biology Questions Answers
  67. Production of Antibodies
  68. Male Reproductive System
  69. Wind pollination
  70. What is Transpiration
  71. Effects of pH on enzymes
  72. Sugar: Types, Formation & Test
  73. Blood Clotting: O Level Biology
  74. Parasitism: Malarial Pathogen
  75. Dormancy & Seed Germination
  76. Herbaceous & Woody Plants
  77. Mammalian Eye
  78. Physical Environment: Ecology
  79. Red Blood Cells in Mammals
  80. Water Transport in Plants
  81. Thyroxin Function
  82. Factors affecting enzymes
  83. Biology Test Online
  84. Disease caused by protein deficiency
  85. Biology Learning Online
  86. Structure of Mammalian Skin
  87. White blood cells
  88. School Level Biology
  89. Amino acid in Biology
  90. Introduction to Biology
  91. Fungi: Mode of Life
  92. Biology Subjective Test
  93. Layers of Epidermis
  94. Fructose and Disaccharides
  95. Starch
  96. Controlling Entry of Light
  97. Transport in Flowering Plants
  98. Drug Types
  99. Facts about Smoking
  100. Mouth & Buccal Cavity
  101. Pyramid of energy
  102. Liver in Biology
  103. Characteristics of Energy
  104. Tea and Coffee
  105. Sensory Neurons
  106. Pollution: Causes of Pollution
  107. Cellulose Digestion
  108. Excretion in Biology
  109. Structure of Cell: Nucleus
  110. Body Muscles
  111. Heart: O Level Biology
  112. Decomposers in Nature
  113. Habitat specialization due to salinity
  114. Daily Energy Requirements
  115. Structure & Function
  116. Ecology & Environment
  117. Parasite Diseases
  118. Wind Dispersed Fruits & Seeds
  119. O Level Biology Questions
  120. Protein Sources
  121. Conservation: Forests & Renewable Resources
  122. Energy requirements
  123. Recycling: Waste Disposal
  124. What is Excretion
  125. Fast Learning Biology
  126. Artificial Methods of Vegetative Reproduction
  127. What is Nutrition
  128. Insect Pollination
  129. Anaerobic Respiration
  130. Genetic Engineering & Biotechnology
  131. Structure of Root
  132. GCE O Levels Biology
  133. Structure of Nephron
  134. Pollution Causes
  135. Piliferous Layer
  136. Viruses: Biochemical Parasites
  137. Ovary & Pistil
  138. Rate of Reaction & Enzyme Activity
  139. Causes of Pollution
  140. Size & Position of Kidneys
  141. Internal Structure of Eye
  142. Oesophagus
  143. Formation of urine
  144. Biological Science
  145. Pesticides: O Level Biology
  146. Oxidation & Respiration
  147. Glycogen
  148. Nutrition: Glycogen
  149. Ordinary Level Biology
  150. Nutrition: Introduction
  151. Functions of liver
  152. Mammalian Digestive System
  153. Seed Dispersal: Dispersal by animals
  154. Central Nervous System
  155. Adaptations in Small intestine
  156. Caecum & Chyle
  157. Lactose
  158. Mucus
  159. Carboxyhaemoglobin
  160. Exam Preparation: Biology
  161. Biology: Fats
  162. Drugs of Abuse
  163. Biological Molecules
  164. System of Classification
  165. General Nutrition
  166. Pollution: Inorganic Wastes as Cause
  167. Types of Flowers
  168. Introduction to Biotechnology
  169. Smoking Related Diseases: Lung Cancer
  170. Excretion & Egestion
  171. Main Arteries of Body
  172. Structure of Cell: Protoplasm
  173. Role of blood in transportation
  174. Cell Structure
  175. Weight Reduction Program
  176. Characteristics of Enzymes
  177. Online Education: Biology
  178. Storage of excess amino acids
  179. What is Selective Reabsorption
  180. Herbicides: O Level Biology
  181. Fats and Health
  182. Differentiation: Tissues
  183. Function of Enzyme: Trypsinogen
  184. Mineral Nutrition in Plants
  185. Biology Practice Questions
  186. Biotic Environments
  187. Double circulation in mammals
  188. Genetically Modified Organisms
  189. Examples of Homeostasis in Man
  190. Branches of Biotechnology
  191. Sexual & Asexual Reproduction
  192. Digestion: Enzyme Catalyzed Process
  193. Pollution: Smog as Cause
  194. Function of Enzyme: Pepsin
  195. Human Biology
  196. Vegetative Reproduction in Plants
  197. O Level 2014 Biology
  198. Heroin Effects
  199. Nervous Tissue
  200. Meningitis
  201. Bacteria: Structure & Types
  202. Function and shape of RBCs
  203. Simple Carbohydrates
  204. Seed Dispersal: O Level Biology
  205. Tissue Respiration, Gas Exchange & Breathing
  206. Pollution: Pesticides & DDT
  207. Decomposition in Biology
  208. Carbohydrate in Biology
  209. Main Veins of Body
  210. Carbon Cycle & Fossil Fuels
  211. Biology Test Questions
  212. Basal Metabolism
  213. Fat rich foods
  214. Leaf Adaptations for Photosynthesis
  215. Denaturation of Enzymes
  216. Study Biology
  217. Cell Biology
  218. Function of ADH
  219. Vitamins D
  220. Learning Biology
  221. Ultrafiltration
  222. Effects of Alcohol
  223. Biotechnology: Fermentation Products
  224. Enzymes: O Level Biology
  225. GCE Biology
  226. Atmospheric Pollution
  227. Pollination in Flowers
  228. Vitamins & Minerals
  229. Cell: Structure & Function
  230. Fermentation: O Level Biology
  231. Fungus
  232. Molecular Biology
  233. Blood Pressures
  234. Disadvantages of Excess Vitamins
  235. Deforestation, Air & Water Pollution
  236. Industrial Biotechnology
  237. Limiting factors
  238. Bacteria Structure
  239. Holozoic Nutrition
  240. Biotic & Abiotic in Ecology
  241. Spinal Nerves
  242. Biology Tests Online
  243. Conservation: Fishing Grounds
  244. What is Biology
  245. Medical Drugs: Antibiotics
  246. Health Pyramid
  247. Pollution: Carbon Monoxide
  248. Bile: Origination & Functions
  249. Mammalian Urinary System
  250. Oxygen Debt
  251. Proteins
  252. Stomach and Pancreas
  253. Biology Exam
  254. Nutrients
  255. Specifity of Enzymes
  256. Energy Types in ecological pyramids
  257. Acclimatization to High Attitudes
  258. Structure of Lamina
  259. Photosynthesis: O Level Biology
  260. Mineral Salts
  261. Balanced Diet & Food Values
  262. Hydrolysis
  263. Structure of Cell: Mitochondrion
  264. Blood Pressure Testing
  265. Starvation and Muscle waste
  266. Eutrophication: O Level Biology
  267. Glycerol
  268. Pollution: BOD & Eutrophication
  269. Structure of Cell: Vacuoles
  270. What is Fibrinogen
  271. Diabetes
  272. Structure of Cell: Centrioles
  273. Anaesthetics and Analgesics
  274. Photons in Photosynthesis
  275. Effects of temperature in enzymes
  276. Energy Units
  277. Functions of stomach
  278. Human Heart
  279. Cells: Building Blocks of Life
  280. Food Chain & Web
  281. Internal Skeleton
  282. Disaccharides and complex sugars
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