Bio:

The answer key to a biology diffusion and osmosis worksheet typically includes explanations of how particles move from areas of high concentration to low concentration (diffusion) and how water moves across a selectively permeable membrane (osmosis). Key answers might cover examples like food coloring spreading in water (diffusion) or water entering or leaving a cell depending on the surrounding solution's tonicity (osmosis). It also includes identifying hypertonic, hypotonic, and isotonic solutions and predicting water movement in different scenarios. Students may be asked to label diagrams or analyze experiments like the classic egg osmosis lab.