<span>european nation's sense of rivalry and mistrust of one another deepened as they competed for colonies in Asia and Africa</span>
Gorbachev's policy of perestroika refers to economic reforms.
The literal meaning of 'perestroika' is restructuring, referring to the restructuring of the Soviet economic system.
Answer:changing one amino acid in the protein hemoglobin causes sickle-cell anemia
Explanation:
I just took the test
