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.

Retype the question .

This is s cute awee : (( . well if she's showing you signs that she may like you , then shoot your shot ! don't be afraid . & if you're unsure that she's giving you these signs , then wait out for a little bit . most girls are different . some may act really sweet , but only bc you're a good friend of hers . that , or she might like you . you just never know . but i think you should sit down with her & tell her how you feel . but don't be awkward & shy . just be straight up & tell her how you feel . if the feelings aren't mutual , then don't cry about it . you need to respect her decision & look for others in the world . feelings can be difficult & confusing , but don't be afraid to show them . i say you play it out & if you're still unsure about it , talk to her . - rach

The answer is 25.1  wont let me give a short have a nice day?