O Level Biology MCQs: Multiple Choice Questions and Answers (Quiz & Tests with Answer Keys)

O Level Biology Multiple Choice Questions and Answers pdf: MCQs, Quizzes & Practice Tests. O level biology quiz questions and answers pdf with practice tests for online exam prep and job interview prep. O level biology study guide with questions and answers about biology: biotechnology, co-ordination and response: animal receptor organs, co-ordination and response: hormones and endocrine glands, co-ordination and response: nervous system in mammals, drugs, ecology, effects of human activity on ecosystem, excretion, homeostasis, microorganisms and applications in biotechnology, nutrition in general, nutrition in mammals, nutrition in plants, reproduction in plants, respiration, sexual reproduction in animals, transport in mammals, transport of materials in flowering plants, what are enzymes, what is biology.
O level biology MCQ questions and answers to get prepare for career placement tests and job interview prep with answers key. Practice exam questions and answers about biology, composed from O level biology textbooks on chapters:

Biology: Biotechnology Practice Test: 17 MCQs
Co-ordination and Response: Animal Receptor Organs Practice Test: 23 MCQs
Co-ordination and Response: Hormones and Endocrine Glands Practice Test: 45 MCQs
Co-ordination and Response: Nervous System in Mammals Practice Test: 97 MCQs
Drugs: O Level Biology Practice Test: 67 MCQs
Ecology: O level Biology Practice Test: 110 MCQs
Effects of Human Activity on Ecosystem Practice Test: 110 MCQs
Excretion: O Level Biology Practice Test: 48 MCQs
Homeostasis in Biology Practice Test: 111 MCQs
Microorganisms and Applications in Biotechnology Practice Test: 105 MCQs
Nutrition in General Practice Test: 257 MCQs
Nutrition in mammals Practice Test: 96 MCQs
Nutrition in Plants Practice Test: 84 MCQs
Reproduction in Plants Practice Test: 232 MCQs
Respiration in Biology Practice Test: 50 MCQs
Sexual Reproduction in Animals Practice Test: 18 MCQs
Transport in Mammals Practice Test: 155 MCQs
Transport of Materials in Flowering Plants Practice Test: 54 MCQs
What Are Enzymes Practice Test: 68 MCQs
What is Biology Practice Test: 78 MCQs

O level biology interview questions and answers on transport in flowering plants, acclimatization to high attitudes, adaptations in small intestine, aerobic respiration and its waste, amino acid in biology, anaerobic respiration, anaesthetics and analgesics, anemia and minerals, antibiotics: penicillin production, artificial methods of vegetative reproduction, asexual reproduction, atmospheric pollution, average daily mineral intake.
O level biology test questions and answers on bacteria structure, bacteria: structure and types, balanced diet and food values, basal metabolism, bile: origination and functions, biological molecules, biological science, biology basics, fats, biotechnology and fermentation products, biotechnology: fermentation products, biotic and abiotic environment, biotic and abiotic in ecology, biotic environments.
O level biology exam questions and answers on blood and plasma, blood clotting, blood platelets, blood pressure testing, blood pressures, body muscles, brain of mammal: forebrain, brain of mammal: hindbrain, branches of biotechnology, caecum & chyle, carbohydrate in biology, carbon cycle and fossil fuels, carboxyhaemoglobin, causes of pollution: biology, cell biology, cell structure, cell: structure and function, cells: building blocks of life.
O level biology objective questions and answers on cellulose digestion, central nervous system, characteristics of energy, characteristics of enzymes, circulatory system, classification of enzymes, college biology, condensation reaction, conditions essential for photosynthesis, conservation: fishing grounds, conservation: forests and renewable resources, conservation: renewable resources, controlling entry of light, daily energy requirements, decomposers in nature, decomposition in biology, deforestation and pollution, deforestation, air and water pollution.