There are two types of competition that exists in the ecosystem and
these are intraspecific and interspecific types of competition. In the
given scenario above which is a competition of food between sea turtles
and fishes, the type of competition that exists between these two
species is INTERSPECIFIC COMPETITION.
I think it will change, because over the years they have found different ways to show the atom, and different discoveries. We always have a new chance to discover something new about the atom.