Biology Year 4 invites students to explore the living world through the powerful lens of systems—how they sense change, maintain balance, and ensure the continuity of life. Throughout the course, learners will investigate how organisms interact with their environments, how internal processes sustain health and wellbeing, and how reproductive strategies contribute to biodiversity and long-term survival. These explorations emphasize that biological functions are deeply interconnected: the ability to respond to stimuli, to regulate internal conditions, and to reproduce successfully all shape an organism’s place within dynamic ecosystems.

Students will engage with models, data, real-world problems, and scientific communication to build a rigorous understanding of how life operates and why these mechanisms matter in a rapidly changing world. Ethical considerations, personal responsibility, and the impacts of scientific and technological innovation will form an essential part of their learning, encouraging them to become thoughtful, informed decision-makers. By the end of the course, students will not only understand the foundational processes that sustain life—they will appreciate their role in preserving balance within the systems of which they are an integral part.