Q.

In humans, the life processes are controlled and regulated by:

1 Reproductive and endocrine systems  
2 Respiratory and nervous systems  
3 Endocrine and digestive systems  
4 Nervous and endocrine systems  

Ans.

(4)

The nervous and endocrine systems in humans work together to control and coordinate all activities. Both of these systems are made up of a number of organs that work in coordinated manner.