Digestion - What Is It?

The video explains the nutritional components of a burger and how digestion breaks it down into nutrients that can be absorbed into the blood. It covers both mechanical and chemical digestion, highlighting the role of enzymes like amylase. The video contrasts human internal digestion with external digestion in organisms like fungi and houseflies. It also discusses the time required for digestion and the significant role of gut bacteria in the process.

What new insight or understanding did you gain from this video?