Misc: who played dolly levi in the screen version of the matchmaker??

Questions

Who, in 1655, discovered Saturn's rings ?

Talc is a hydrated silicate of which metal?

The duodenum and the jejunum are two of the three sections of the small intestine. Which is the third?

What is the name of the weak attractive bonds which exist between molecules?

What name is given to the bonds which link amino acid molecules together to form proteins?