A. sympathetic and parasympathetic systems
B. cranial and sacral nerves
C. brain and cranial nerves
D. spinal cord and spinal nerves
E. brain and spinal nerves

Correct Answer:

Option A – sympathetic and parasympathetic systems

SEE ALSO  The loss of water vapour through the aerial parts of the plant to the atmosphere is called?

Copyright warnings! Do not copy.