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Multiple Choice
In the context of primary succession, what role do lichens and mosses play?
A
They decompose organic matter to enrich the soil.
B
They provide shade for other plants to grow.
C
They act as pioneer species that help in soil formation.
D
They increase the biodiversity of the ecosystem.
Verified step by step guidance
1
Understand the concept of primary succession: Primary succession is the process of ecosystem development on newly formed or exposed land, where no soil initially exists, such as after a volcanic eruption or glacier retreat.
Identify the role of pioneer species: Pioneer species are the first organisms to colonize barren environments. They are crucial in initiating the ecological succession process.
Recognize the characteristics of lichens and mosses: Lichens and mosses are well-suited to harsh, nutrient-poor environments. They can grow on bare rock and withstand extreme conditions.
Explain how lichens and mosses contribute to soil formation: Lichens secrete acids that chemically weather rocks, breaking them down into smaller particles. Mosses help trap dust and organic matter, gradually forming a thin layer of soil.
Understand the impact on ecosystem development: By creating soil, lichens and mosses enable other plant species to establish, increasing biodiversity and advancing the succession process.