Which subatomic particle is the atomic mass considered negligible

It is elecctrons. They basically weigh next to nothing.

a chain link fence because there so tiny even my albino donkey can't get out

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.