Why were europeans less vulnerable to most diseases than native americans?
a. they had built up immunities.
b. they never came into contact with them.
c. native americans were less hygienic than europeans.
d. native americans did not practice medicine like europeans.

answer: my answer would be a) scheduling workouts with your friend for consistent days and time

explanation: for me personally i would be much more likely to go to the gym with a friend because i wouldn't want to cancel on them or stand them up.

,identify or describe the affordable care act. how has aca changed healthcare in the us since implementation? you may professionally express your opinion on aca, do you think it will or hurt patient care?