After doing a survey of his class, ryan decided his discussion of tesla's death ray device would be difficult for his audience to follow. one of the ways he adapted to this was to paraphrase and repeat vital information at the end of each main point. what device was ryan using in his speech?

I believe the answer is: Internal summary
Internal summary refers to a speech technique where the speaker make an effort to remind the audiences about the subpoints that have been discussed in the speech. The purpose of this is to clarify which part of information that would be crucial for the audiences to remember.

Yes you are cute answer theories to explain the colonization of the new world the last great habitable landmass to be occupied by humans focus on the bering land bridge, or beringia, which emerge by siberia and alaska the last ice age.