Multiple Choice
In the context of an ecosystem, what is a decomposer and what role do they play?
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48. Ecology
Introduction to Ecology
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In the context of primary succession, what is typically lacking in the area where this process begins?
A
Air
B
Soil
C
Water
D
Sunlight
Verified step by step guidance1
Understand the concept of primary succession: Primary succession occurs in lifeless areas where there is no soil initially, such as on bare rock surfaces after a volcanic eruption or glacial retreat.
Identify the key components necessary for plant growth: Plants typically need soil, water, sunlight, and air to grow.
Recognize what is initially absent in primary succession: In primary succession, the area lacks soil, which is essential for plant roots to anchor and obtain nutrients.
Consider the role of pioneer species: Pioneer species, such as lichens and mosses, are the first to colonize these barren areas. They help in the formation of soil by breaking down the rock and accumulating organic material.
Conclude why soil is the correct answer: Since primary succession begins in areas without soil, the development of soil is a crucial initial step in this ecological process.
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