Free GRE Practice Question

Question 1 of 1
ID: GRE-SEQ-006
Section: GRE Verbal Reasoning - Sentence Equivalence
Difficulty level: Hard

Practice Mode: Single selected Question » Back to Overview

A few remarkably intact tide pools along the northern shore are so varied and so densely populated that marine ecologists have come to treat each one as __________ of the coastal ecosystem as a whole.

[ Note: Select 2 answer choices ]

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