functional programming in haskell

1. (a) What does the following function do? If you know the name of the prelude function it is equivalent to, say what it is.

> unknown1 f as = [f a | a <- as]

(b) What does the following function do? If you know the name of the prelude function it is equivalent to, say what it is.

> unknown2 p as = [ a | a <- as, p a]