Which of the following statements is true about cell signaling? (a) In multicellular organisms, cell communicate using hormones (b) In unicellular organisms, cell communicate using extracellular signaling molecules (c) In multicellular organisms, cell communicate using intracellular signaling molecules (d) None of the above
Within-cell signaling allows bacteria to respond to environmental cues, such as nutrient levels, some single-celled organisms also release molecules to signal to each other.
