The diagram shows two water molecules. what does the the dotted line between the water molecules represent? a. a polar bond b. a covalent bond c. a hydrogen bond d. an eletronegative bond

The correct answer is option C. a hydrogen bond.

The water is a polar molecule, in which the oxygen has a slight negative charge and the hydrogen has a slight positive charge. The positive charge of the hydrogen from one molecule attracts the negatively charged oxygen atom of another water molecule. As a result, an inter molecule hydrogen bonding is formed. Hence, the dotted line represents a hydrogen bond.

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.