Test: GRE Subject Test: Biology

1.

Which of the following provides the most accurate example of primary succession? 

Native grass communities forming after a wildfire burned through a meadow/woodland ecosystem

Seedlings establishing themselves in a heavily logged area where the seed-tree cutting method was employed

Lichens re-establish themselves on rocks and shallow soil beds following a tundra fire

Coral reef and aquatic wildlife communities that have re-established themselves in regions of the South Pacific that were evacuated following the nuclear tests conducted by the U.S. military

Lichen and grass communities establishing themselves on a recently-formed island, resulting from an uplift in the ocean bedrock

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