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2026 WAEC Biology likely Questions and Answers with details explanations 2026 WAEC Biology likely Questions and Answers If you’re preparing for the upcoming WAEC examination, this guide on 2026 WAEC Biology likely questions and answers will help you pass with confidence. The 2026 WAEC Biology likely questions and answers were carefully compiled based on the latest WAEC syllabus and previous exam patterns.By studying this 2026 WAEC Biology likely questions and answers, you’ll understand the most frequently repeated topics and how to approach each question type in both Paper 1 (Objective) and Paper 2 (Theory). InstructorMA COACH Last updatedtoday Total Viewers 1k+ ClassWAEC 2026 WAEC Biology likely Questions and Answers Join Our Social Media Join Our Social media for latest updates and reading classes WhatsApp Community WhatsApp Channel Telegram Channel TikTok YouTube FaceBook Join Our Social media for latest updates and reading classes WhatsApp Community WhatsApp Channel Telegram Channel TikTok YouTube FaceBook Science of Living Things (1) Biology is the study of A. Animal B. life C. macro-organism D. micro-organism E. plant Answer: Life (B) – Biology is derived from two Greek words: BIOS meaning life and LOGOS meaning to study. It is therefore the study of life. The rest options are examples of living things. Option B is the most appropriate Answer. RECOGNIZING LIVING THINGS (2) State two features each which viruses have in common with: (i) living things (ii) non-living things Answer: Features in common with living things: NB: Viruses can act as living and non-living things, depending on whether or not they are inside a living thing. i. (a) They reproduce, (b) They move. ii. Features in common with non-living things: (a) They can’t move, (b) They can’t respire. The above is so, because when viruses are in living organisms, they possess all the features (characteristics) of living thing. And when they are outside living organisms, they possess all the characteristics of non-living thing.(3) Which of the following is not correct about all living organisms? A. Response to changes in the surroundings B. Possession of the ability to reproduce C. Growth through the division of their cells D. Ability to combine carbon dioxide and water to form sugar E. Elimination of waste productsAnswer: D – This is so because not all living things can combine carbondioxide and water to form sugar. This process is only possible in plant in the presence of sunlight and chlorophyll. This is known as photosynthesis. All other option (A, B, C and E) are common to all living thing.(4) Which of the following is a characteristic of non-living things? A. growth B. locomotion C. insensitivity D. respiration E. nutrition Answer: C – This is so because insensitivity is not a feature of living things. NB: Don’t confuse irritability (sensitivity) for insensitivity.(5) List all the characteristics of a living organisms.Answer: (ai) The characteristic of living thing can be easily remembered by the mnemonic: MR NIGER CAD Where: M – Movement R – Respiration N – Nutrition I – Irritability G – Growth E – Excretion R – Reproduction C – Competition A – Adaptation D – Death(6) Explain briefly the characteristics listed in (5) aboveAnswer: 1) Movement: This is the process by which living things move from place to place in search of food, shelter and mate.2) Respiration: Respiration is the oxidative break down of complex food substances such as glucose in the cells to release energy for vital activities. NB: The oxidative breakdown of these substances in order to release energy takes place in the mitochondria of the cells. For this reason, the mitochondrion (singular of mitochondria) is referred to as the “power house of the cell”. 3) Nutrition: This is the process by which living things take in, digest, absorb, and assimilate food substances. 4)Irritability (sensitivity): This is the ability of living things to respond to stimuli (e.g. hunger, thirst or pain) in order to survive. Stimuli could be external e.g. heat, light, water, sound and chemical substances, or internal e.g. hunger, thirst, pain. 5) Growth: Growth is irreversible increase in size or dry weight as a result of synthesis of new body material, increase in number of cells, cell enlargement and cell differentiation. 6) Excretion: Living things excrete. Excretion is the removal of waste products of metabolism from inside the body. 7) Reproduction: Reproduction is the process by which an organism give rise to young ones of its own kind. 8) Competition: Living things tend to struggle for many of the necessities of life in order to survive. Therefore, organisms usually compete for natural resources such as food, light and space. 9) Adaptation: in order to survive, every organisms possesses the ability to adapt to changes in its environment. The inability of an organism to do so leads to its extinction. 10) Death: every organism has a definite and limited period of existence. Death occurs when conditions are unfavourable for life processes. (7) Which of the following is NOT a diagnostic feature of living things? A. respiration B. crystallisable C. irritability D. adaptation Answer: B – Crystallisable implies something to be able to form crystals.(8) A characteristic that can possibly be shared by both living and non-living organisms is A. locomotion B. irritabilityC. increase in biomass D. increase in size Answer: D – Both living and non-living things increase in size (grow). The difference is that, while living things increase in size by the internal accumulation of organic materials, non-living things on the other hand, increase in size by the external accumulation of inorganic materials.(9) At what level is Amoeba A. tissue B. organ C. Cellular D. System E. FilamentAnswer: C – Amoeba is a unicellular (single-celled) organism and therefore belongs to the cellular level of organization.(10) Which of the following is not a tissue found in plants? A. Epidermis B. Phloem C. Xylem D. Dermis E. Mesophyll. Answer: D – Options (A, B, C and E) are found in plants. But option D (dermis) is not found in plants. It can only be found in some animals. It is the layer of the skin just beneath the epidermis of mammals. N.B: Both plants and animals posses epidermis. The epidermis is an outer protective layer.(10) Which of the following is not a tissue found in plants? A. Epidermis B. Phloem C. Xylem D. Dermis E. Mesophyll. Answer: D – Options (A, B, C and E) are found in plants. But option D (dermis) is not found in plants. It can only be found in some animals. It is the layer of the skin just beneath the epidermis of mammals. N.B: Both plants and animals posses epidermis. The epidermis is an outer protective layer.(11) Name the four levels of organization in living organismsAnswer: The cell,tissue,organ,system(12) Explain two of the levels of organizations named in (11) aboveAnswer:The cell: This is the smallest structural and functional unit of life. Examples: amoeba, plasmodium, euglena, paramecium, chlamydomonas, etc. Tissue: This is a group of similar cells that perform a given function. Examples: sponge, hydra, etc.(13) State the level of organization of Euglena, onion bulb and bloodAnswerEuglena → Cell; Onion bulb → organ; blood → tissue(14) Which of the following is a tissue? A. Volvox B. Chlamydomonas C. Epidermis D. Paramecium Answer: C – Chalamydomonas and paramecium exist at the cellular level of life. Volvox exist as a colony, while epidermis exists as a tissue.(15) Which of the following represents the correct sequence, from the most simple, to the most complex organizations? A. Mitochondrion, Muscle, Alimentary canal, Rabbit, Heart, Neuron B. Mitochondrion, Neuron, Muscle, Heart, Alimentary canal, Rabbit C. Alimentary canal, Neuron, Muscle, Heart, Rabbit, Mitochondrion D. Rabbit, Mitochondrion, Heart, Neurone, Alimentrary canal, Muscle. Answer: B – Before you attempt this question, you must understand the organization of life, starting from the smallest called cell, followed by tissue, then organ, then system and finaly an organism.- The mitochondria are organelles of a cell- The neuron is a nerve cell- The muscle is a tissue- The heart is an organ- The alimentary canal is a system- The rabbit is an organism. So, option B is the most orderly arranged option (16) Which of the following structure is a tissue? A. Vessel element B. Blood C. Sieve tube element D Erythrocyte Answer: B – A tissue consists of similar cells organized to perform a particular function. From the above options, only B (blood) suits the Answer: . The rest options are all singular cells. N.B: The cellular component of blood are the white blood cells (leucocytes), the red blood cells (erythrocytes), and the platelets (thrombocytes)(17) The epidermis of a leaf is considered an example of a tissue because the cells A. allows sunlight to pass throughB. are covered by a waxy cuticle C. all possess a similar structure and functionD. allow water to enter them by osmosis. Answer: C – A tissue is a group of similar cell that performs a particular (similar) function.(18) The organism at the organ level of organisation of life is A. Euglena B. Spirogyra C. Ginger D. Tapeworm Answer: C –An organ consists of similar tissues that are organized to perform a particular function. e.g the heart, kidney, rhizomes, bulbs e.t.c. Ginger is an example of a rhizome therefore it is at the organ level of organization.(19) Which of the following organism is the most specialized? A. Paramecium B. Amoeba C. Spirogyra D. Rhizopus Answer: D – The most specialized organism is the one at the highest level of organization. From the options listed above, rhizopus, belongs to the highest level of organization. (20) What level of organization is Spirogyra? A. Organ system B. Organ C. Cell D. Tissue Answer: C – Spirogyra exist in the cellular organization of life but as a filament.(21) Which of the following is at the cellular level of organisation? A. Taenia B. Heart C. Euglena D. Bulb E. Kidney Answer: C – Euglena exists as a cell, Heart and kidney are organs in animal, Taenia (tape worm) is an organism. Bulb (e.g. onion) is an organ.(22) The organisms listed below are unicellular in nature except A. Paramecium. B. Amoeba. C. Euglena. D. Volvox. E. Chlamydomonas. 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