Answer:
A. The messanger molecules reach their target cell via passage through the bloodstream
Explanation:
Lots of resources were found and culture
Explanation:
Congressional investigations not only help legislators make better policy decisions, but they are central to the system of checks and balances. Investigatory hearings can uncover presidential abuses of power and corruption, such as the Teapot Dome scandal in the 1920s or Watergate in the 1970s.
Because the USA and other countries fear nuclear threats and are afraid they will bomb their country. This would result in war and use of more nuclear weapons which would kill many.
