Ecology Regents Review

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Nonliving and Never was.

The gradual replacement of plant species over hundreds of years. Eventually it reaches a climax forest.

The number of all the living things living in a certain area.

These organisms break down dead organisms and recycle them back into the Earth to be used as nutrients for new organisms. Examples are fungi and bacteria.

As Biodiversity increases, ecosystem stability

The number of a single species in a certain area.

All the biotic and abiotic factors in a certain area.

The part of the Earth that contains living organisms.