1.
an organism that is added to a population
2.
the greatest a population can be in an ecosystem
3.
when an ecosystem starts from nothing
4.
when organisms work together it is called...
5.
an organism that leaves a place
6.
ecosystems rely on the... mature ecosystems with ... are stable until disturbed
7.
when 2 or more spices share a resource
8.
when a population maintains a size below full potential
9.
a living part of an ecosystem
10.
a non-living part of an ecosystem
11.
the number of individuals in a population that an environment can support
12.
when an ecosystem has a small disturbance but not completely wiped out
