Ferns Often Maintain High Diversity Even on Very Isolated Islands

question 11

Multiple Choice

Ferns often maintain high diversity even on very isolated islands. This is because

• A) ferns are often planted deliberately by human colonists.
• B) ferns are often introduced accidentally by human colonists.
• C) ferns are easily dispersed by light wind-blown spores.
• D) ferns are easily dispersed because birds carry their seeds.
• E) new fern species most often evolve on isolated islands.

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