Resurrection means that when a person dies, his spirit which was given to him by God goes back to the Father for judgement or it simply means that when we die we go up. We don't stay in that hole in the ground forever.

The Sadducees did not dare ask Jesus anymore questions because Jesus gave a well spoken answer. An answer like a prophet himself sent by God.

"The children of this age marry, and are given in marriage. But those who are considered worthy to attain to that age and the resurrection from the dead, neither marry, nor are given in marriage. For they can't die any more, for they are like the angels, and are children of God, being children of the resurrection. But that the dead are raised, even Moses showed at the bush, when he called the Lord 'The God of Abraham, the God of Isaac, and the God of Jacob.' Now he is not the God of the dead, but of the living, for all are alive to him."