A) based on the signaling model shown in figure 1, describe the role of molecule B

There are two kinds of communication in the world of living cells. Communication between cells is called intercellular signaling, and communication within a cell is called intracellular signaling. An easy way to remember the distinction is by understanding the Latin origin of the prefixes: inter– means “between” (for example, intersecting lines are those that cross each other) and intra– means “inside” (like intravenous). Chemical sign

Explanation:

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully