Which neurotransmitter elevates mood and has a role in memory

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

What noticeable trend from this graph might be used to make a conclusion?

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.