👉 Non-staining is a biological process by which cells in a living organism can absorb and retain nutrients from their environment without converting them into toxic substances. This means that they are able to maintain their health and function without consuming any harmful chemicals or materials. The term "non-staining" refers to the ability of a cell to absorb and retain nutrients, rather than convert them into toxins. This process is essential for maintaining cellular function and preventing damage from external factors such as environmental pollutants or pathogens. Non-st