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Zorluk: OrtaCross-Text Connections: Relational Synthesis

Text 1
Many evolutionary biologists argue that the rapid diversification of angiosperms (flowering plants) during the Cretaceous period, often referred to as Darwin’s "abominable mystery," is best explained by co-evolutionary relationships with insect pollinators. They contend that the emergence of specialized pollinators catalyzed angiosperm speciation, creating a feedback loop that allowed flowering plants to dominate terrestrial ecosystems.

Text 2
While insect pollination was certainly a factor, paleobotanist Dr. Marcus Vance argues that angiosperm success was primarily driven by environmental shifts. Vance points out that during the Cretaceous period, rising global temperatures and elevated carbon dioxide levels favored the high-rate photosynthesis and fast-growing physiology of early angiosperms over gymnosperms, meaning they would have diversified rapidly even without insect assistance.

Based on the passages, how would Dr. Vance (Text 2) most likely respond to the evolutionary biologists’ claim in Text 1?

  1. A
    By asserting that insect pollination played no role whatsoever in the evolutionary history of early angiosperms.
  2. B
    By agreeing that insect co-evolution was the primary catalyst but arguing that this process occurred prior to the Cretaceous period.
  3. C
    By claiming that gymnosperms adapted more quickly to rising Cretaceous temperatures than angiosperms did.
  4. By suggesting that environmental conditions, rather than co-evolution with insects, were the primary driver of rapid angiosperm diversification.Cevap

Cevap

The correct answer is the option suggesting that environmental conditions, rather than co-evolution with insects, were the primary driver of rapid angiosperm diversification.
The author of Text 2 states that while insect pollination was a factor, the success of angiosperms was 'primarily driven by environmental shifts' like rising temperatures and carbon dioxide levels. Therefore, the author of Text 2 would respond to the claim in Text 1 by suggesting that environmental factors were more important than co-evolutionary relationships with insects in explaining the plants' rapid diversification.

Adım Adım Çözüm

1
Analyze the claim in Text 1.
Evolutionary biologists claim that angiosperm diversification was primarily caused by co-evolution with insect pollinators.
To understand the target argument that Dr. Vance will respond to.
2
Analyze Dr. Vance's argument in Text 2.
Dr. Vance argues that while insect pollination was a factor, the primary driver of angiosperm success was environmental shifts (rising temperatures and carbon dioxide) that favored angiosperm growth over gymnosperms.
To identify Dr. Vance's perspective on the cause of angiosperm diversification.
3
Synthesize the relationship between the two perspectives.
Dr. Vance counters the biologists' claim by suggesting that abiotic environmental factors, rather than biotic co-evolutionary factors, were the primary cause of the rapid diversification.
To determine the correct relationship and select the option that accurately reflects it.

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Cross-Text Connections: Relational Synthesis
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Cross-Text Connections: Relational Synthesis

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