What is the function of the nervous system?

To collect information in form of sensory input from environment and body and then interpret and process these information inputs and responds on it.

Explanation:

Everything that body does is somehow connected to nervous system heartbeat, breathing, running and so on. It also controls memories and senses. Nerves send messages through nerve cells called neurons. Neurotransmitters are chemicals connects neurons and that moves through synapses to next until message reach to the right place. Messages can move faster than 200 hours per miles.

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

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