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
I could not answer the question only on comments so look at comments and please mark brainliest.
LOOK AT THE COMMENTS FOR ANSWERS PLEASE!
There were several major factors that led to stalemate in the trenches, but the best options from the list are "Defensive weapons were better than offensive ones.
<span>and Trenches were designed for defense."</span>