Hello Help plz :)What is rRNA

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.

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

allowed for the prediction of the properties of missing elements.