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.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d