What is reflex best described as?

What does the pitiless wave in line 22 symbolise? Why can't solid be compressed? Why is wind not a viable source? What do we use in bicycle wheels to reduce friction? What is the name of a solid object that lets electrons move easily through it? Why does ice cream melt in the sun? Why is a pressure point called a pressure point? What is the reading of thermometer given as? How many gallons in a cubic centimeter? What kind of simple machine is a close pin? Why does vibrating simple pendulum not produce any sound? The object that uses up the energy being delievered in an electrical circuit is called the? What is the quantity of fissionable material called that CANNOT sustain a nuclear reaction? Why is cotton sock better at slowing heat loss compared to no sock at all? Which will have the greater acceleration rolling down an incline plane- a large ball or a small ball? What do you call it when someone pronounces their s as a whistle sound? What does a culmative frequency mean? In order to decrease the friction an object experiences you can either change the surface? What are examples of expansions and contractions of matter? What is the difference in terms of reflection between objects that appear blue and objects that appear yellow?

What is reflex best described as?