Which phrase correctly describes the use of a native north american plant product to treat a disease introduced to north america from africa and europe?
a) coca cured measles
b) coca cured smallpox
c) quinine cured malaria
d) quinine cured syphilis

Explanation:

Quinine was used to treat malaria until 1940's. It was prepared from the bark extracts of Cinchona tree. The first antimalarial compound from its bark was isolated in 1800s. This tree is native to Peru and there is ample evidence which proves that it has been used to treat malaria since 1600s. Quinine was in widespread use until 1940's when new drugs with lesser side effects replaced it.

the wants of children today than in colonial times are very different. as well as the roles. children now have electronics such as phones, tablets, tvs, etc. back then, kids didn’t have electronics. in the colonial times, children were expected to their parents in their work. but now, children are expected to go to school.

hope i

-lavira : )