Functionalism. It is according to the concept 'survival of the fittest'
If the question is asking whether it is true or false, the answer is true. It is because not all women who have menstruation has the exact time when it comes to predicting or determine ovulation as there are factors considered and interrupts with these process that made it complicated and hard to determine.
The steps get More specific
Isn’t it active transport????
Climate change is the choice that answers your statement