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Zorluk: ZorClause Boundaries and Linking

In conservation biology, the Allee effect describes a phenomenon where a population's density drops below a critical threshold, reducing the reproductive success of individual organisms. Although species with high density easily find mates, underpopulated groups often struggle to locate breeding partners _______ this isolation can lead to a rapid, self-reinforcing decline toward local extinction.

Which choice completes the text so that it conforms to the conventions of Standard English?

  1. A
    , but this
  2. ; thisCevap
  3. C
    , this
  4. D
    this

Cevap

The correct answer is '; this' because a semicolon is a grammatically standard way to join two independent clauses.
The choice containing the semicolon followed by 'this' is correct because a semicolon is a grammatically standard way to separate two closely related independent clauses. In this sentence, 'underpopulated groups often struggle to locate breeding partners' and 'this isolation can lead to a rapid, self-reinforcing decline toward local extinction' are both independent clauses, and using a semicolon successfully avoids a comma splice or run-on error.

Adım Adım Çözüm

1
Analyze the structure of the passage before and after the blank.
The text before the blank contains a subordinate clause followed by a main clause ('underpopulated groups often struggle to locate breeding partners'). The text after the blank is another independent clause ('this isolation can lead to a rapid, self-reinforcing decline toward local extinction').
Identifying the clauses helps determine what type of punctuation or conjunction is needed to link them.
2
Determine the grammatical relationship between the two independent clauses.
The two independent clauses are 'underpopulated groups often struggle to locate breeding partners' and 'this isolation can lead to a rapid, self-reinforcing decline toward local extinction.' The second clause explains the consequence of the first clause.
Because they are both independent clauses, they must be separated by a semicolon, a colon, a period, or a comma followed by a coordinating conjunction.
3
Evaluate the choices based on grammatical correctness and logical meaning.
The choice with '; this' correctly uses a semicolon to link the clauses. The choice with ', this' is a comma splice, the choice with 'this' is a run-on, and the choice with ', but this' is semantically incorrect because 'but' denotes contrast rather than consequence.
Only the correct choice is both grammatically correct and semantically logical.

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Clause Boundaries and Linking
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Clause Boundaries and Linking

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