Because serfs did everything for them, and without serfs they would have to do them themselves
Mr. Mendal was a expert in genetics and was trying to figure out how alleles worked. He used plants for this and tried to mix different colors. After the experiments he successfully found that if you mix the genetics of one thing with another there is a chance to mix.
That is no way to answer someone
Answer:
During 1989 and 1990, the Berlin Wall came down, borders opened, and free elections ousted Communist regimes everywhere in eastern Europe. In late 1991 the Soviet Union itself dissolved into its component republics. With stunning speed, the Iron Curtain was lifted and the Cold War came to an end.
Explanation:
A. Countries improve efficiency through producing goods in which they have the lowest opportunity cost.
B. Countries earn revenues from tariffs that are placed on imported goods
C. Companies gain the goods and services they need.
D. Host countries benefit by gaining jobs and tax revenue from multinational corporations.
Are these the options?
If so, answer is B.