What did a Mongol messenger carry on the postal relay system to prove that they were authorized and entitled to food and fresh horses?
a. A letter from Chinggis.
b. Silver or bronze tablet.
c. Special silver spurs.
d. A piece of Chinggis' hair.
e. A copy of the Origin of Chinggis Khan.
Question 2
In what way were the Inca similar to the Aztec?
a. The empire was developed in the Andes.
b. They practiced human sacrifice.
c. Defeated people were integrated into the empire.
d. Defeated people were often resettled to avoid rebellion.
e. Peoples who had been defeated owed labor and military service to the empire.
Conduction system of the heart.
Hormones and the endocrine system.
The nervous system.
The gastrointestinal system.
Renin–angiotensin system.
Male Reproductive System - Testes