Answer:
I believe China, or Yellow River civilization.
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:
Aristotle tutored alexander the great and went to plato's academy in athens, greece.
The Crisis of the third Century was a period of extreme upheaval for the Roman Empire.
