SIHAY National Biology Olympiad 2024 Overall Champion Job well done, scholars! The PSHS-CALABARZONRC SIHAY National Biology Olympiad 2024 representatives dominated the competition, participated in by 38 schools from all over the country. The 2-day event concluded on Sunday, April 14, with Pisay CALABARZON hailed as the Overall Champion. All representatives excelled in their categories. SCIENCE continue reading : SIHAY National Biology Olympiad 2024 Overall Champion