Mary has to choose between a job and learning French during summerbreak. What will be the opportunity cost if she wants to study French?ohaving the opportunity to study Frenchlosing the opportunity of a summer jobpaying for the French lessons

Answer:To develop a molecular clock, you need to find which of the following?a sequence of moleculesthe rate at which changes occur in a type of moleculehow much total change has occurred in a type of molecule from two different specieshow many molecules a species hasStep-by-step explanation:To develop a molecular clock, you need to find which of the following?a sequence of moleculesthe rate at which changes occur in a type of moleculehow much total change has occurred in a type of molecule from two different specieshow many molecules a species has