Final answer:
Cells can communicate with each other through direct contact or chemical signaling.
Step-by-step explanation:
Cells communicate with one another through cell-to-cell direct contact or through chemical signaling.
Cell-to-cell direct contact: Some cells have special structures that allow them to physically touch and communicate with neighboring cells. One example of this is gap junctions, which are protein channels that connect the cytoplasm of adjacent cells, allowing molecules and electrical signals to pass through.
Chemical signaling: Cells also communicate using chemical molecules called signaling molecules or ligands. These molecules are released by one cell and bind to receptors on the surface of another cell, triggering a response inside the receiving cell. Examples of chemical signaling include hormones and neurotransmitters.