It depends on which part. The cerebellum, at the base of the brain, is essential - damage that and your body won't be able to function at all. However, you can damage the cerebral cortex and just lose part of your memory or forget how to talk or not be able to move part of your body. It's a fascinating subject - you should Google "brain injury" and read more about it!
If a specific part of the brain is missing, other parts of the brain may be able to compensate for the lost function to some extent. However, the brain's ability to perform certain functions may be impaired or altered depending on which part is missing.
brain
A haemorrhage can happen anywhere in the brain!
depends on the part...grips, stocks, sights, etc. have no effect on the actual firing. is that what you wanted to know?
You are in danger of a stroke
Henry Gustav Molaison was the man whose brain injury sparked new interest in brain research. Part of his brain was missing the hippocampus.
If we knew where it was it wouldn't be 'missing' now would it?
Depending on the location of the shot, and how far it penetrated into the brain would give you a variable on chances of living. For the most part, there is a low chance that a person would be living afterward, but exceptions do happen.
Because someones brain part is missing. Also, they are hard core.
This is a myth that brain is lost during puberty. Nothing of the sorts happen.
Since it controls vital functions such as breathing, swallowing, digestion, eye movement and heartbeat, there can be no life without it. But the rest of the brain is obviously capable of some remarkable feats, with one part able to compensate for deficiencies in another.
The scientist studying the brain would be part of the nervous system.