Organisms in the same ecosystem are all

The question is asking us to say what organisms in the same ecosystem are.

Organisms in one ecosystem are all dependent on each other: they feed on each other or are dependent on the tissues of the other organisms when they die - this is called "interdependence" - dependence from each other.

So the answer is interdependent.

Organisms in the same ecosystem are all co-existing.

1. each gas is different in their own way.

2. Straight line with positive slope