This Intermediate Biology course provides a comprehensive exploration of core biological concepts designed for high school students and beyond. Organized into eight structured units, the curriculum begins with the foundations of biology and the scientific process before advancing to the chemistry of life, including water, elements, and macromolecules. Students then study cell structure and function, cellular energetics, and the mechanisms of the cell cycle and communication. The course further examines principles of heredity, gene regulation, and natural selection, culminating with an in-depth look at ecology. Through detailed explanations and illustrative examples, this course equips learners with a strong understanding of intermediate-level biology, preparing them for advanced studies in the life sciences.