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Question

Difficulty: EasyClause Boundaries and Linking

Although marine biologists have long studied the ecological dynamics of giant kelp forests, they continue to be amazed by the plants' rapid growth under optimal conditions. A single kelp frond can grow up to two feet per day in ideal ______ this rapid expansion provides vital shelter and nutrition for hundreds of diverse marine species.

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

  1. conditions;Answer
  2. B
    conditions,
  3. C
    conditions
  4. D
    conditions although

Answer

conditions;
The correct answer correctly uses a semicolon to separate two independent clauses. Since both clauses can stand alone as complete sentences, a semicolon is a grammatically valid method of joining them without a coordinating conjunction.

Step-by-Step Solution

1
Identify the clause boundaries in the sentence.
The sentence contains two independent clauses: 'A single kelp frond can grow up to two feet per day in ideal conditions' and 'this rapid expansion provides vital shelter and nutrition for hundreds of diverse marine species.'
Determining whether the clauses are independent or dependent guides the punctuation required to join them.
2
Evaluate the grammatical rules for linking two independent clauses.
Two independent clauses must be joined by a period, a semicolon, a colon, or a comma paired with a coordinating conjunction (such as 'and', 'but', or 'so').
This narrows down the correct punctuation options and eliminates grammatically incorrect structures.
3
Select the choice that correctly links the clauses without creating grammatical or logical errors.
The choice containing a semicolon successfully separates the two independent clauses, whereas the comma alone creates a comma splice, the lack of punctuation creates a run-on, and the transition word 'although' creates an illogical relationship.
Ensures adherence to the conventions of Standard English.

Key Concept

Clause Boundaries and Linking
Estimated Time:1m 0s
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Topics

Clause Boundaries and Linking

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