Answer:
A
Explanation:
He used pea plants due to their ability to reproduce sexually and their easily observable traits.
Becuase he did 9/11 im pretty sure
Answer:Nullification crisis, in U.S. history, confrontation between the state of South Carolina ... The doctrine of nullification had been advocated by Thomas Jefferson and James ... John C. Calhoun furthered the nullification doctrine in his South Carolina ... of the legislature) to take an oath of support for the ordinance, and threatened contrast
Explanation:
The last great emperor in the Ottoman Empire was Mehmed VI or as Vahideddin.