vs
QUICK ANSWER
"Comprendida" is a form of "comprender", a transitive verb which is often translated as "to understand". "Comprendido" is a form of "comprendido", an adjective which is often translated as "comprised". Learn more about the difference between "comprendida" and "comprendido" below.
comprender()
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
a. to understand
Me costó comprender las instrucciones del juego.I had trouble understanding the game instructions.
a. to include
Esta guía comprende información útil acerca de todos los parques nacionales.This guide includes useful information about all of the national parks.
comprenderse
A reciprocal verb is a verb that indicates that two or more subjects perform an action on each other (e.g., Ellos se abrazan.).
a. to understand each other
Mis dos hermanas no se comprenden. Son personas muy diferentes.My two sisters don't understand each other. They are very different people.