That they migrated during the ice age over 12,000 years ago
Answer: mixed message
Explanation: mixed messages are verbal or non verbal communication that are contradicting.
Ramona got a mixed message from Dan after he expressed a romantic interest in her. This is because her response was confusing and contradicting at the same time, while she smiles at Romona and put her hand on his arm which is a sign of acceptance in communication, she then verbally said she isn't interested in him.
Dred Scott Vs. Stanford case was heard in Supreme court of US which issued its final ruling saying that Africans whether free or slaves were not the citizens of US.
Explanation:
Dred Scott who is a plaintiff and a slave was bought by John Emerson in Missouri. Later Emerson came along with Dred Scott to Illinois where Scott married and as they were returning to Missouri, Emerson died. Now Dred Scott decided to sue for his freedom in the federal court. He claimed he was free as he lived in the free state.
Robert Taney who was the chief justice issued the land mark decision that African american though free or slave were not the citizen of US and hence Dred Scott had no right to sue in the federal court. Dred Scott lost his case and this ruling was condemned universally as one of the racism based verdicts which paved way for the amendments of the statutes pertaining to the rights of African Americans.
