Explain the purpose of a synapse:

In the nervous system, a synapse is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron or to the target effector cell. Synapses are essential to the transmission of nervous impulses from one neuron to another. Synapses are the sites of contact between nerve cells. Synapses convert electrical signals into chemical information, which is conveyed between neurons at this site. The synapse consists of both pre- and postsynaptic elements. Synapses connect neurons in the brain to neurons in the rest of the body and from those neurons to the muscles. ... Synapses are also important within the brain, and play a vital role in the process of memory formation, for example. brainliest?

Explanation:

Synapses connect neurons in the brain to neurons in the rest of the body and from those neurons to the muscles, Synapses are within the brain, and play a vital role in the process of memory formation

Explanation:

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

not sure if this what   you'r looking for would be percent composition