Why did diseases spread so rapidly in the americas after european explorers arrived? a. the diseases affected the body’s major organs. b. the diseases were highly contagious. c. the diseases affected the immune system. d. the diseases were harmful to the skin.

Match each person with his contribution. aristotle socrates eratosthenes hippocrates he studied the causes of illnesses in search of cures. he created a teaching method that involved asking questions. he determined that earth was round. he educated alexander the great.