Which is not an example of intracellular communication?
A.
Ions are exchanged in a nerve cell stimulating other ion changes in that same cell.
B.
A chemical released in a cell stimulates another part of that same cell.
C.
A chemical release in a muscle cell causes the release of a second chemical in that same cell.
D.
A pheromone molecule in the air produced by one insect stimulates a reaction in a cell of another insect.