Which is a biotic component of a marine ecosystem? detritus on the ocean floor the oxygen concentration of the water rocks on the ocean floor?

I think it is Detritus on the ocean floor.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

fossil's are like over rated rocks like low key not gonna lie i don't get why we can't just call them old rocks like for real i mean i call my grandpa and grandma that smh