Answer:
The need for continental time zones stemmed directly from the problems of moving passengers and freight over the thousands of miles of rail line that covered North America by the 1880s. Since human beings had first begun keeping track of time, they set their clocks to the local movement of the sun.
DNA or protein from a virus entered bacterical cells during infection
Answer:
I'm sure you'll find your answer some time soon
The National Institutes of Health found it effective in reducing pain and other symptoms, but it is not clear how it works.
