The caste system as an integral part of the Hindu tradition, history homework help

Read the following paragraph:

When they divided [the body of the dead god] […]
The priestly caste was his mouth, of both his arms was the warrior caste made.
His thighs became the merchant class, from his feet the peasant class was produced.

Then answer the following question:

How did India’s caste/jati system differ from contemporary class structures in other parts of the world?