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.——————Neurotransmitters are endogenous chemicals that enable neurotransmission. It is a type of chemical messenger which transmits signals across a chemical synapse, such as a neuromuscular junction, from one neuron (nerve cell) to another "target" neuron, muscle cell, or gland cell.
Naturalists referred to Amoeba as the Proteus animalcule
after the Greek godProteus who could change his shape. The name "amibe"
was given to it by Bory de Saint-Vincent,[3] from the Greek meaning change
DNA contains the instructions for an needed for an organism to develop, survive, and reproduce.
