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Difficulty: MediumSentence-Level Transitions

For decades, paleontologists believed that the coelacanth—a primitive, deep-sea fish—had gone extinct during the Late Cretaceous period. Therefore, in 1938, a museum curator in South Africa discovered a living specimen among a local fisherman's catch, challenging long-held assumptions about evolutionary history.

Which of the following choices best replaces the underlined portion to establish a logical transition?

  1. A
    NO CHANGE
  2. However,Answer
  3. C
    Moreover,
  4. D
    Indeed,

Answer

The transition 'However,' is correct because it logically connects the belief of extinction with the contrasting discovery of the living fish.
The transition 'However,' is correct because it establishes a logical contrast between the previous sentence (stating that scientists believed the coelacanth had gone extinct millions of years ago) and the current sentence (stating that a living specimen was discovered in 1938).

Step-by-Step Solution

1
Analyze the relationship between the first sentence and the second sentence.
The first sentence states that scientists believed the coelacanth was extinct. The second sentence describes the discovery of a living coelacanth.
To choose the correct transition, the logical relationship between these two points must be identified.
2
Determine the logical relationship type.
The relationship is one of contrast: the discovery of a living fish directly contradicts the belief that it was extinct.
Identifying the correct relationship type narrows down the transition choices.
3
Evaluate the transition choices to find the one that indicates contrast.
'However,' is a contrast transition and fits the context perfectly. 'Therefore' (cause-effect), 'Moreover' (addition), and 'Indeed' (emphasis) do not fit.
Selecting the transition that aligns with the contrast relationship ensures a cohesive and logical passage.

Key Concept

Sentence-level transitions link sentences by establishing logical relationships such as contrast, cause-and-effect, addition, or emphasis.
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Topics

Sentence-Level Transitions

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