Question

a note on brain....​

Answer 1

Answer:

A brain is the largest and one of the most complex organs in the human body . It is made up of more than hundred billion nerves that connects with trillions of connections called synapses . The brain is made up of many specialized areas that work together : The cortex is the outermost layer of brain cells

Explanation:

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Answer 2

Answer:

brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a vertebrate's body.