i think you mean antibiotic ... but Alexander Fleming was the one who advanced the antibiotic (world) and was responsible for creating these categories of medicine... this affected the 20th century because millions of people use antibiotics everyday and without them... many diseases would still affect people without a cure
The answer is F Aid of arms to Britain
Answer:
Ethnicities.
Explanation:
An ethnic group or ethnicity is a certain social category of people based on the perception of its members that they have a common origin or experience. Members of an ethnic group believe that they share a common history and cultural traditions (such as language or beliefs) that separate them from other groups. An ethnic group can proclaim a nation claiming a territory, or constitute the majority population of a nation state, whose members or citizens similarly have a certain nationality.
Was an American statesman who served as the sixth President<span> of the United States from 1825 to 1829. He also served as a diplomat, a Senator and member of the House of Representatives.</span>
