What is meant by a "merit-based entry system?"

john adams was the 2nd president of the united states.

explanation:

the correct answer is b

health and medicine because people are dying from not being healthy or not strong enough medicine

accomplishment : zachary taylor’s was a national war hero in his battle in an mexican war

explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,