Is the brain part of the sensory system in an animal?
no brain is not an organ. So it is not part of the sensory system.
Yes Even though the brain is not an organ it is still part of the sensory system because it can detect information about the outside world.
Yes. the brain is the organ that receives all of the information from every other sensor organ and then processes that information.
No the brain cannot detect information about the outside world So It is not part of the sensory system