Religion or Morality

Had we evolved the same morals if we had no religion?

Which came first, religion or morality?

Even if we suppose that morality is innate then why moral values keep changing?

Did that innate morality had the ability to provide a complete code of life down to the minute details?

If everyone came up with his own version of morality wouldn't there be chaos?

Is then morality evolving? and is this evolution random? and if it is random then are there no perfect moral values?