Which of the following blood vessels would have the lowest blood pressure?
a. one that is small in diameter and has high blood volume
b. one that is large in diameter and has low blood volume
c. one that is small in diameter and has low blood volume
d. one that is large in diameter and has high blood volume

"a scientist studying a whale and its surroundings would need to understand the structure of atoms in case something was negatively affecting the whale or its surroundings."

explanation:

this was from the link provided:

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.