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Zorluk: OrtaOverall Text Structure Analysis

When a whale dies, its carcass sinks to the bathyal or abyssal seafloor, initiating a complex, multi-stage ecological succession known as a 'whale fall.' Initially, mobile scavengers, such as sleeper sharks and hagfish, consume the soft tissue over several months. Once the carcass is stripped, opportunistic macrofauna, including crabs and polychaete worms, colonize the surrounding sediment and bones, feeding on remaining organic debris. In the final, longest-lasting phase, chemosynthetic bacteria metabolize lipids embedded within the bones, producing hydrogen sulfide that sustains a specialized community of organisms. This progression demonstrates how a single event provides sustained nutrient inputs to otherwise resource-poor deep-sea ecosystems.

Which choice best describes the overall structure of the text?

  1. A
    It identifies a geological hazard on the ocean floor, examines its immediate impact on deep-sea habitats, and proposes a technological solution to mitigate it.
  2. It defines an ecological phenomenon, outlines the sequential stages of its development, and concludes by highlighting its broader ecological impact.Cevap
  3. C
    It introduces a scientific debate regarding a deep-sea process, contrasts two competing theories, and resolves the debate with recent empirical evidence.
  4. D
    It details a specific biological adaptation, explains the mechanism behind that adaptation, and argues for its preservation in marine environments.

Cevap

The correct answer is the option that states the text defines an ecological phenomenon, outlines the sequential stages of its development, and concludes by highlighting its broader ecological impact.
The correct answer accurately describes the structure of the text. The passage begins by introducing the definition of a 'whale fall.' It then sequentially describes the development of this process through three distinct phases: first, the scavenger phase; second, the opportunistic macrofauna phase; and third, the sulfophilic bacterial phase. Finally, the last sentence explains how this progression benefits deep-sea ecosystems as a whole by supplying nutrients.

Adım Adım Çözüm

1
Analyze the opening sentence of the text.
The text defines 'whale fall' as a multi-stage ecological succession occurring on the deep seafloor.
To identify how the author initiates the discussion.
2
Examine the middle section of the text for transitions and sequential details.
The text details three consecutive phases of ecological colonization using temporal signals: 'Initially' (mobile scavengers), 'Once the carcass is stripped' (opportunistic macrofauna), and 'In the final, longest-lasting phase' (chemosynthetic bacteria).
To track the developmental sequence of the main paragraph body.
3
Evaluate the concluding sentence of the text.
The text states that this progression demonstrates how a single event supports nutrient-poor deep-sea ecosystems.
To determine the rhetorical purpose of the ending statement.

Anahtar Kavram

Identifying the organizational structure of a reading passage by mapping its sequential rhetorical moves.
Tahmini Süre:1m 30s
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Overall Text Structure Analysis

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