When you fertilize the lawn you're adding a solute to the earth the roots grow in. Why is it important to follow the directions on
the bag and not over-fertilize?

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

and after water is usually warmed by the sun the water temperature raises and then evaporates .