Which of the following cranial nerves is not a motor nerve?

Assertion : The brain stem contains centres for controlling activities.
Reason : Brain stem is very sensitive.

Which part of the brain acts like a defense castle,controls moods,and plays an important role in emotional behavior,such as aggression and remembering fear?

What does the $Corpus$ $callosum$ connect?

Assertion : Midbrain and hindbrain (except cerebellum) form the brain stem.
Reason : Cerebellum has very convoluted surface in order to provide the additional space for many more neurons.

The branched tree-like structure present in the cerebellum is known as: