What are the three theories that the professor mentions for the origin of language?, Singing, To calm down children, To scavenge large animals, To trade things between groups, Which theory does the professor think is most likely to be true?, Singing, To calm down children, To scavenge large animals, To trade things between groups, According to the professor, what is the difference between most primates and humans?, Humans are larger than most primates., Humans are weaker than most primates., Humans have less hair than most primates., Why is hair important for raising children?, It keeps children warm., It allows children to hold on to their mother., The smell of a mother's hair calms down children., Why do scavengers need language?, To work together scavenging very large animals., To decide how to divide large animals, To give names to the animals that they scavenge, The host thinks that having one universal language _____., would be impossible, would be more efficient, would be less efficient, According to the professor, languages tend to change because _____., people hear things differently over time, some sounds are impossible to reproduce, people need new words, The host compares the change of language over time to _____., talking to people far away, talking on the telephone, playing a game of telephone, The professor states that _____ change over time., all languages, most languages, some languages, The host suggests that there would be less language diversity if ancient people _____., had looked at the clouds more, had invented written language earlier, had lived in larger communities, The professor says that written language was invented _____., 10 minutes ago, 10 centuries ago, relatively recently in human history, The professor states that about _____ languages are severely endangered., 1000, 3500, 7000, The 20 most common languages _____., are the easiest languages to learn, have stopped changing, are helping eliminate many of the smaller languages, According to the professor, English _____., is the best language to study, is difficult to learn, is having the most success, is now being driven by America, has a history of greedy imperialism, When the professor mentions a "rapacious imperial power", he means _____., the English language, England, the United States

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