Arguments against carbon dating
Without the starting time it is Actually, knowing the starting time is still not enough.During the race you have to watch the swimmer and count how many laps he has swum so you know that he has done 1,500 metres.
(Once in a while some "scientist" will speculate and publish some "finding" which is generally discarded later) When we find a mutant in the higher level creatures, it is nearly always sterile.
You could talk about the tiny quartz crystal and the piezoelectric effect used to provide a stable time base for the electronic movement.
You could describe the atomic workings of the quartz oscillator and how it resonates at a specific and highly stable frequency, and how this is used to accurately pace a timekeeping mechanism.
In short, the theory of evolution states that lower life evolved over eons into higher life forms.
Many lower life forms (generally single cells or plants) are asexual, which is what one would expect if the theory of evolution had any validity.