Complex sentence: Biophysical Chemistry is a relatively new branch of chemistry that covers a broad spectrum of research activities involving biological systems with the most common feature that the research seeks to measure, describe and explain physical phenomena in biological systems at the molecular to supra-molecular level.
Split into simpler sentences: Biophysical Chemistry is a relatively new branch of chemistry that covers a broad spectrum of research activities involving biological systems. The most common feature that research in this subject seeks to measure, describe is to explain physical phenomena in biological systems at the molecular to supra-molecular level.