Crawford W. Long ( 1815 - 1878 ) was an American surgeon, best known for his first use of inhaled sulfuric acid as an anesthetic. He published his findings in 1849.Sigmund Freud was an Austrian neurologist and the founder of psychoanalysis. Ivan Pavlov was a Russian physiologist, known for his work in classical conditioning.Luis Pasteur was a French biologist who discovered the principles of vaccination and pasteurization.Answer: A . Crawford W. Long
To Make sure you repeat it and dont forget i guess
Haitian Revolution
Louisiana purchase
Lewis and Clark
Fremont explores the Rockies
The appropriate response is twenty-eight percent. The New Deal was a progression of projects and activities established amid the Great Depression by President Franklin D. Roosevelt that planned to reestablish success to Americans. At the point when Roosevelt took office in 1933, he acted quickly to balance out the economy and give occupations and help to the individuals who were enduring.
The African-American family under slavery was generally stable and supportive (option "A" is the correct one).
Although families were stable and supportive, the slavery condition inhibited family formation. Before 1865, when slavery was prohibited, African-American slaves could not marry legally in the US, since they were not considered "people" if not "slaveholders' property". Consequently, many slaves decided to live together as husband and wife without legal union. Some enslaved people who lived in nuclear families (father, mother and children) belonged to the same owner, while others lived in near-nuclear families (the father had an owner while the mother and children had a different one). Even worse, family separation could be a possibility through the sale of one or more family members, since the slaveholders had to right to sell and purchase them.