The same biological processes at work now applies to those of the past.<quoted text>
It's simpler than that. ToE doesn't harmonize with the Theory of Uniformitarianism which your side seems to demand must be accepted as inviolate. In this case, missing links need not be invoked.
The same geological processes at work now applies to those of the past.
The same irrational thought processes you use now applies to those you have used in the past.