Which statement is NOT true? Dr. Martin Luther King, Jr. gave the "I Have a Dream" speech in 1963. States now forbid operators of theaters, hotels, and restaurants to refuse service to minority groups. In 1870 the Fifteenth Amendment gave all male citizens the right to vote. Slavery was an established institution until the Twelfth Amendment was ratified on December 18, 1865.

Why are low-lying lands more suitable for agriculture than hilly areas?

Aresearcher proposes to conduct a study at a foreign site. the research has been determined to be exempt from the federal regulations by institutional policy. according to federal regulations, is review required at the foreign site? if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted but still require review at the u.s. site by the institution’s irb. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted, but still require review by the institutional official at the local site.

How did dynasties end and how did new ones start?