Earth as one ecosystem.
An individual living creature.
A group of the same living thing.
A group of different organisms that live and work together.
A place where living and non living things live and interact.
Many ecosystems; it's determined by climate and elevation.
Temperate Deciduous Forest
Organisms that produce their own enrgy from the sun.
An organism that is living, was living or apart of something that is or was living.
Something that is not living, never was living and never will be living.
A region of the earth that is very diverse but is also under threat due to its loss of habitat.
When communities of an ecosystem change over time.
Occurs in places where an ecosystem has never occured.
Pioneer species appear in the earliest stages and tend to be smaller, grow faster, need less resources, and thrive in an environment where there is not a lot of competition.
Starts in an ecosystem when something has disturbed its natural community.
A community of plants & animals that has reached a steady state.
A community of organisms where each member is eaten in turn by another member.
A community of organisms where there are several food chains.
Any factor(biotic or abitoic) that limits the growth of a species population.
The amount of organisms that an ecosystem can support.
The increase in the number of people who inhabit an area.
The epidemic experienced during the Middle Ages that killed nearly half the people of western Europe.
A measure of how quickly the number of people in an area increases