What step in the carbon cycle didn’t exist before the industrial revolution?

adam ripon he cute then jared goff

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.

d

explanation:

the dark variety, as they are not visible on the dark tree barks

explanation: