Answer:
Transparency - Creatures such as jellyfish and squid have adapted into a transparent jelly form to stay hidden from predators and prey
“Piezolytes” - Keeps many sea creatures from being crushed by underwater pressure and being turned into biomolecules
Reproduction Patterns w/light - One such example, the angler fish, would use the light attached to it's head to signal a certain light pattern to attract mates and reproduce
It increased the amount of war and infighting in west Africa and depleted African resources.
The answer is 1858......Is that one of your options