If it wasn't for an organisms built in survival methods, then life wouldn't get far beyond the primordial goo that we all evolved from. I don't know what you mean by this proves there is a 'greater purpose', but if by this you mean something divine you will need to prove that otherwise you are just making a leap of faith.
i agree, but what i mean is that, if you really look at it, it almost looks to be designed.
You don't appear to understand something called 'odds'. Earth is suitable for life due to it's circumstances. In other words it is luck. If Earth was smaller like Mars, we would have no atmosphere enough to incubate life. It just happens that way. Given the amount of stars in the visible universe, Earth, statistically won't be the only planet were conditions were just right.