What does absorption mean in biology?

In Biology, absorption refers to the process by which organisms take in nutrients, water, and other substances from their environment, typically through cellular membranes. In animals, this often occurs in the digestive system, where digested food is absorbed into the bloodstream from the intestines. In plants, absorption primarily happens through roots, where water and minerals from the soil are taken up. This process is crucial for maintaining cellular function and overall organism health.