What internal and external ?

Read this example: original work - a novel about a man's struggles to returnhome to his family after spending the past ten yearsfighting in a war.which work would represent a change to the artistic medium of this originalwork? a. a story written about the man's adventures since the warb. a novel that translates the story into another language.c. a painting of the man wishing he was home with his familyd. a book written about the war the man was fighting

What is a mechanism by which organisms maintain homeostasis when the level of one substance influences the level of another substance or the activity of an organ.

Which one of these lines use him to permitte which one of these lines uses iambic pentameter?