Introduction to Biology: Nutrition in Plants and Animals

Every living thing on Earth needs energy to survive, but have you ever wondered how plants create their own food from sunlight, or how animals break down complex meals into usable nutrients? This text-based course guides you through the fundamental biological processes of nutrition, tracing food from its primary sources through complex food webs and digestive systems. You will learn: • Understand the core processes of photosynthesis and autotrophic nutrition in plants. • Explore heterotrophic nutrition and how different animal groups ingest and digest food. • Analyze the structure and function of digestive systems in the animal kingdom. • Learn about the ecological significance of food chains and nutrient cycling in modern ecosystems. • Discover contemporary perspectives on sustainable food systems and plant-based nutrition. • Practice identifying key biological terms and nutritional pathways through clear written explanations. The journey begins with foundational terminology and cell-level processes before expanding into plant transport systems and animal digestion mechanics. This course is designed for young learners, general science enthusiasts, and anyone looking for a clear, beginner-friendly introduction to life sciences with no prior biology background required. Start reading today to uncover the fascinating science behind how life fuels itself.