Who among the following described protoplasm as the physical basis of life?

T.H. Huxley famously described protoplasm as the 'physical basis of life' in the 19th century, emphasizing its fundamental role in living organisms. Leeuwenhoek was an early microscopist who discovered microorganisms, while Virchow is known for 'omnis cellula e cellula' (all cells come from cells). J.C. Bose contributed to plant physiology but did not work on protoplasm theory.