Test: SAT II Biology E

1.

A new volcanic island forms in the Pacific Ocean. Over time, soil forms on the island, grasses grow, shrubs appear, birds nest on the island, and the island is no longer a barren rock. This is an example of which of the following?

Ecological succession because the structure and composition of the community has changed over time.

A population bottleneck because the population on the island has to be very limited due to the nature of islands.

Evolution because the species on the island changed over time.

A climax community because the community changed and grew more complex.

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