The lithosphere is the outer layer of the earth characterized by O magma
O layers of both hard and soft rocks
O soft rocks that flow easily
O hard rocks that break

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.

option number one would be youre best option