Answer This. I will give Brainliest if i can.

1. Your fingertips are in constant, direct communication with your brain through your body's somatosensory system, a massive network of nerve endings and specialized touch receptors in the skin.

Explanation:

1. A neuron has three main parts. The cell body directs all activities of the neuron. Dendrites

extend out from the cell body and receive messages from other nerve cells. An axon is

a long single fiber that transmits messages from the cell body to the dendrites of other

neurons or to other body tissues, such as muscles. A protective covering called the myelin

sheath, covers most neurons. Myelin insulates the axon and helps nerve signals travel

faster and farther.

Messages travel along a single neuron as electrical impulses, but messages between

neurons travel differently. The transfer of information from neuron to neuron takes place

through the release of chemical substances into the space between the axon and the

dendrites. These chemicals are called neurotransmitters, and the process is called

neurotransmission. The space between the axon and the dendrites is called the synapse

When neurons communicate, the neurotransmitters from one neuron are released, cross the synapse, and attach themselves to special molecules in the next neuron called receptors. Receptors receive and process the message, then send it on to the next neuron. Eventually, the message reaches the brain.

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive