化学元素 vs. 生化学元素：分類と生命における重要な役割 1. Chemical vs. Biochemical Elements Chemical Elements: There are 118 elements in the periodic table; 94 occur naturally , with 24 being synthetic. Biochemical Elements: About 27 are essential for lif... Health Supplements 飼料配合 2025/07/01 Feed Innovation & Sustainability