Which one is the correct answer
I think its c

c

Explanation:

the speed increase from w to x due to increased gravity force

the speed decreases from x to y due to decrease in gravity

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.