What is the first layer of earths atmosphere from the bottom

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous