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Zorluk: ZorPunctuation of Nonessential Elements

Deep-sea hydrothermal vents support thriving ecosystems despite extreme temperatures and pressures. The vent shrimp *Rimicaris exoculata* _______ relies on a specialized dorsal organ to detect the faint, near-infrared glow emitted by the vents. This unique adaptation allows the species to navigate its hostile environment without the benefit of traditional eyesight.

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

  1. A
    —which lacks functional compound eyes,
  2. , which lacks functional compound eyes,Cevap
  3. C
    , which lacks functional compound eyes—
  4. D
    which lacks functional compound eyes,

Cevap

The choice that sets off the nonessential relative clause with matching commas: ', which lacks functional compound eyes,'
The sentence contains the nonessential relative clause 'which lacks functional compound eyes' modifying the specific species name *Rimicaris exoculata*. Because the species is already uniquely identified by its scientific name, this description is nonessential and must be set off from the main clause with matching punctuation. The correct option uses a pair of commas to correctly isolate this clause.

Adım Adım Çözüm

1
Analyze the sentence structure to identify the relationship between the clause 'which lacks functional compound eyes' and the noun phrase 'Rimicaris exoculata'.
The clause is nonessential (non-restrictive) because 'Rimicaris exoculata' is a specific scientific name that uniquely identifies the organism.
Nonessential elements provide extra information and must be set off from the rest of the sentence with punctuation.
2
Determine the required punctuation rules for nonessential elements.
The punctuation setting off the nonessential element must be symmetrical (matching pairs: comma-comma, dash-dash, or parenthesis-parenthesis).
Mismatched punctuation marks disrupt the grammatical structure of the sentence.
3
Evaluate the choices to find the one that uses a symmetrical pair of punctuation marks to isolate the nonessential clause.
The choice using a comma at both the beginning and the end of the clause is correct, while all other options use asymmetrical patterns.
Only the matching pair of commas conforms to the conventions of Standard English.

Anahtar Kavram

Punctuation of Nonessential Elements
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Konular

Punctuation of Nonessential Elements

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