Question

The ______ system senses changes in the internal and external environment so that the body can adapt to the changes.

Answer 1

The nervous system senses changes in the internal and external environment so that the body can adapt to the changes.

Answer 2

Nervous system

Step-by-step explanation:

The receptor cells of nervous system sense the changes in internal and external environment and send the information to the central nervous system (brain and spinal cord). The brain process the information and commands the muscles or effector organs to carry out required processes or functions under prevailing conditions. This makes the organisms to respond to the changes in internal and external environment.