What mistakes did the leaders and members of the colony at Jamestown make which placed them in so much danger of death and failure?

For which branch of government is the president responsible?

Me asap worth brainlieist and 50 points

What was the name of the theory that said that if one country in a region fell to communism, others would surely follow? 1) domino theory 2) arms race 3) brinkmanship 4) containment theory