Multiple Choice
In the context of natural selection and evolution, how does the likelihood of extinction vary based on the behavior of a species?
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1. Introduction to Biology
Natural Selection and Evolution
Multiple Choice
Which type of ecological succession occurs in an area where no soil is present, such as after a lava flow or on bare rock?
A
Climax succession
B
Tertiary succession
C
Secondary succession
D
Primary succession
Verified step by step guidance1
Understand the concept of ecological succession: It is the process by which ecosystems change and develop over time, often following a disturbance or the creation of a new habitat.
Identify the key characteristic of the area described in the problem: The area has no soil present, such as after a lava flow or on bare rock. This is crucial for determining the type of succession.
Learn the definition of primary succession: It occurs in areas where no soil exists initially, and organisms gradually colonize the area, starting with pioneer species like lichens and mosses that can survive in harsh conditions.
Contrast primary succession with secondary succession: Secondary succession happens in areas where soil is already present, but the ecosystem has been disturbed (e.g., after a forest fire). This distinction helps clarify why primary succession is the correct answer.
Conclude that primary succession is the type of ecological succession that occurs in areas with no soil, such as after a lava flow or on bare rock, based on the definitions and characteristics provided.
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