Which of the following tests can best you classify a rock as sedimentary, metamorphic, or igneous?

The answer is most likely the hardness test but I'm not sure since you did not name the answer choices

Explanation:

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.