Why was andromeda to be sacrificed to a serpent?

In "i know why the caged bird sings," how doesmarguerite's reaction to oppression differ from the reactionof the caged bird? •she refuses to dress nicely for mrs. flowers.•she refuses to leave the house.•she refuses to eat mrs. flowers's cookies.•she refuses to speak to anyone.

How does gregor change from the beginning to the end of the story?

Which is it? the desert is than the mountains? 1. drier 2. more dry