Which color is traditionally included in the visible light spectrum but does not really exist as a distinct color of light?

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

food chain i would say only because there is competition on getting food and survival

to find facts and details to use as evidence! : ) hope this .

though both had similar roots, they both took these similar bases & formed it into their own way. both the byzantine empire and ancient roman have similar aspects, but each one made it unique. both the byzantine empire and ancient romans had roman influences which affected their culture