2023 Waec Biology Questions And Answers

The West African Examination Council (WAEC) conducts a yearly examination for senior secondary school students. The WAEC Biology exam is an essential component of this examination, and students must prepare adequately to perform well. In this comprehensive guide, we will provide you with potential WAEC Biology questions and answers 2023: objectives and essay to help you excel in your examinations.



Overview of the WAEC Biology Exam The WAEC Biology exam consists of two parts:

the Objective section and the Essay section.The Objective section comprises multiple-choice questions, while the Essay section contains more in-depth, long-answer questions. The exam duration for the Biology 2 (Essay) paper is 1 hour and 40 minutes, while the Biology 1 (Objectiv


c. In a tabular form, state four differences between plants and animals. d. Name one organism that exhibits both plant and animal features, and state four animal features and two plant features possessed by the organism.



2. Photosynthesis and Factors Affecting Its Rate a. Define photosynthesis.

b. List: i. Four external factors; ii. Two internal factors that affect the rate of photosynthesis.

c. Describe the major products of the light-dependent stage of photosynthesis and their importance.


d. Explain why there are no green plants at the lower depths of some lakes and the importance of decomposers to flowering plants.

3. Disease, Pathogens, and the Immune System

a. Explain the following terms: i. Disease; ii. Symptoms of diseases.

b. List two physical and two chemical barriers that prevent pathogens from penetrating the body of an organism.

c. Explain how vaccination protects the body from contracting infectious diseases.

d. Differentiate between an antibody and an antigen, and name the causative agents of: i. Malaria; ii. Cholera; iii. AIDS.


4. Excretion and Excretory Organs

a. Define excretion and list the excretory organs in humans, naming one waste product excreted by each organ.

b. Describe how the mammalian kidney functions as an excretory organ.

c. Name the excretory organs in: i. Insects; ii. Earthworms.


5. Conservation and Eutrophication


a. Define conservation and state six factors responsible for the decline of the abundance and variety of wildlife.

b. Outline six ways in which the government can improve the situation in 5(a) above.

c. Define eutrophication and state its two causes.

A Comprehensive Guide to Prepare for WAEC 2023 Biology Exam

Meta Description: Get ready for the WAEC 2023 Biology exam with our comprehensive guide. Discover effective study strategies, key topics, and valuable resources to boost your preparation and achieve excellent results.


Are you a student preparing for the WAEC 2023 Biology exam? Looking for the best study resources and strategies to excel in your preparation? You’ve come to the right place! In this post, we provide a comprehensive guide to help you effectively prepare for the WAEC 2023 Biology exam. From essential study tips to key topics and recommended resources, we’ve got you covered.

  1. Understand the Exam Format: Familiarize yourself with the exam format, including the structure, duration, and allocation of marks for each section. This understanding will help you plan your time effectively during the actual exam and allocate it appropriately to different sections.
  2. Study the Syllabus: Thoroughly review the WAEC Biology syllabus for 2023. Understand the content, subtopics, and learning objectives specified in the syllabus. This will help you identify the areas that require more focus during your preparation.
  3. Organize Your Study Schedule: Create a study schedule that allows you to cover all the relevant topics systematically. Allocate dedicated time for each subtopic, ensuring you have enough time for revision closer to the exam date. A well-structured study plan will help you manage your time efficiently and avoid last-minute cramming.
  4. Focus on Key Topics: Identify the key topics that are frequently covered in the Biology exam. Topics such as Cell Biology, Genetics, Ecology, and Physiology are often emphasized. Allocate more time to study these topics and ensure you have a strong understanding of their concepts.
  5. Practice Past Exam Papers: Utilize past WAEC Biology exam papers to familiarize yourself with the exam format, types of questions, and the level of difficulty. Practicing past papers will not only help you understand the exam pattern but also improve your time management and problem-solving skills.
  6. Seek Additional Resources: Apart from your textbook, explore additional resources such as study guides, reference books, online tutorials, and video lectures. These resources can provide alternative explanations, examples, and practice questions to enhance your understanding of complex topics.
  7. Form Study Groups: Consider forming study groups with classmates or friends who are also preparing for the exam. Collaborating with others can facilitate discussions, sharing of knowledge, and clarification of doubts. Teaching and explaining concepts to others can solidify your own understanding as well.
  8. Take Breaks and Stay Healthy: Remember to take regular breaks during your study sessions to avoid burnout. Engage in physical activities, eat nutritious meals, and get enough sleep to ensure your overall well-being. A healthy body and mind are vital for effective learning and retention.
  9. Review and Revise: Allocate sufficient time for revision before the exam. Review your notes, summaries, and flashcards regularly. Focus on areas where you need improvement and clarify any remaining doubts with your teachers or peers.
  10. Stay Positive and Confident: Maintain a positive mindset throughout your preparation. Believe in your abilities and stay confident in your knowledge and understanding of the subject matter. Positive thinking can boost your performance and help you tackle the exam with a clear mind.


With this comprehensive guide, you’re well-equipped to prepare for the WAEC 2023 Biology exam. Remember to study strategically, focus on key topics, practice with past papers, and seek additional resources when needed. Stay motivated, maintain a healthy lifestyle, and approach the exam with confidence. Best of luck on your journey to achieving excellent results in your WAEC Biology exam!

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