Explain the concept of money creastion or creadit creastion done by commerical banks with the help of an example

Explain commensalism, with the help of an example.

Explain mutualism with the help of an example.

Explain food chain with the help of one example .

Explain the process of money creation by commerical banks, giving a numerical example. OR How do commerical banks create deospite ? Explain OR Explain the credit creation role of commercial banks with the help of a numerical example. OR Explain money creation function of commericial banks.

What are complementary genes?Explain with the help of an example.