Praxis 5511 Practice Question
Best pioneer species for volcanic island?
Correct Answer: D
Rationale: Lichens are ideal pioneer species for volcanic islands due to their ability to colonize bare rock and withstand harsh conditions, including extreme temperatures and limited moisture. They contribute to soil formation by breaking down rock and providing nutrients.
Palm trees, while resilient, require more developed soil and are not suited for initial colonization. Salt-tolerant bushes thrive in coastal areas but are not typically found on newly formed volcanic landscapes. Vines, though adaptable, generally need some existing structure or soil to anchor and grow, making them less effective as initial colonizers compared to lichens.
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