Ecosystems change when

a.
living components of an ecosystem change
b.
nonliving components of an ecosystem change
c.
their stability is disrupted
d.
all of the above

Answer - D. All of the above

Reasoning -

Living components in an ecosystem such as a predator that was there first and is not there to maintain the food chains then it can disrupt the way of ecosystem.

Non-
living can have an affect such as if you take water away in ponds and lake around the area. Things will likely will die such as plants and casual animals who use the parts of area.

Their Stability of course like a natural disaster which can cause the impact and infliction on the ecosystem itself.