Hibernate + EJB3.1 + Tomcat - what do I need to do to make this possible?

Hi,
I have three questions:

(1)
According to this link (Using Hibernate with Tomcat) running Hibernate in Tomcat is possible (despite the fact Tomcat does't support JPA).
Does anyone know if I'll run into problems with this configuration?

(2)
Can I do something similar to get EJB3.1 support in Tomcat?
For example, if I drop the correct files into WEB-INF/lib and WEB-INF/classes will it be possible to run EJB3.1 in a standard Tomcat7 container (not TomEE)?
If it is possible, which EJB3.1 provider is recommended?

(3)
Generally, is it possible to run any JavaEE technology from within Tomcat as long as I place the appropriate libraries and configuration files in WEB-INF/lib and WEB-INF/classes?
Or, is it only possible to run the technologies for which Tomcat supports the interfaces?
And, lastly, If it's not possible, then why does Hibernate work?

Thanks in advance for all help!

Refer this http://stackoverflow.com/questions/10558966/hibernate-ejb3-1-in-tomcat-what-is-needed-to-make-this-possible both are look like same

I posted in two places to reach a wider audience, as some members of Code Ranch may not be active on Stack Overflow