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.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.