Answer:
Mayra should be checked regularly for heart-related problems.
The correct answer is a law
Laws explain what occurs, not why it occurs. This is a law because it states that a limp stalk of celery will become crisp if put into ice water. There is no explanation why or how it occurs, only that it will happen.
I would say C Duplication since both of the DNA sequences are identical.
The evolution of a species of organisms over time.