Answer:
Greek
Explanation:
The "S Curve" concept was probably invented by the famous Greek sculptor Praxiteles, son of Kifissodotos, who lived in the 4th century BC.
Neurons communicate with each other via electrical events called 'action potentials' and chemical neurotransmitters. At the junction between two neurons (synapse), an action potential causes neuron A to release a chemical neurotransmitter.
Answer:
<u><em>In contour drawings, crossing lines is one way to indicate this. A line that is drawn to show the edge and surface ridges of an object. ... This type of line can denote instability and tension.</em></u>
Explanation: