In which of these situations is convection most likely the main form of heat transfer? A Warm air from a heater on the first floor of a house moves to the upper floors. B The sides of a metal pan become hot when the pan is placed on a stove burner. C A person gets a sunburn from lying on the beach too long. DAn ice cube melts when a person holds it in his hand.

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.

which fault and or fold did you find most difficult to diagram