In the excerpt above, “twenty centuries” is a reference to

Abroad thesis statement encourages your readers to learn something new. question 1 options: 1) true 2) false

The difference between a guess and an inference is a. an inference is not supported by evidence while a guess is. c. a guess and an inference are the same thing. b. a guess is not supported by evidence while an inference is. d. none of the above

Which word best describes the tone of "will we ever grow organs? "