How can the motion of an object best be described?

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.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation: