tyler plays tennis all day in the hot sun and drinks very little what effect will this behaviour have on the quantity and concentration of his urine? explain your answer​

Their urine will get highly concentrated due to the lack of water present. They will be more urea and other secretory products present in the urine than water.  

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.

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.