Answer:
Body systems are groups of organs and tissues that work together to perform important jobs for the body. Some organs may be part of more than one body system if they serve more than one function. ... Examples include the respiratory system, nervous system, and digestive system.
Explanation:
What is what thing all about? There is no attachment and such...
The journey to the promise land
It was primarily the "b. formation of the Vietcong in Vietnam" that led the Truman administration to expand the containment doctrine to include Asia, since this was seen as a threat to democratic principles in the west as well.