Which of these is not an example of intracellular communication?

a. dna in a cell replicates
b. heart cells contract together
c. water regulation by a cell's central vacuole
d. charged ions distributed across a plasma membrane

explanation:

idk

1. law of superposition: when there are horizontal layers of rock. the layers at the top are the youngest.

2. law of uncomformity: where one layer is much younger than the previous one, therefore creating a gap in the time record.

3. inclusion: when there is a solid stone inside of another.

4. intrusion: a feature formed when a stone is filled with magma.

hope i answered your question.