Subject circulatory system
Predicate be more efficient than
Object open circulatory system
Modality
Modality Occurrences
some[subj/a closed] 1
Polarity POSITIVE
Plausibility 0.0002
Neighborhood Sigma 0.0002
Local Sigma 0.1446
Example Sentences
Sentence Occurrences Source
a closed circulatory system is more efficient than an open circulatory system 1 Answers.com Questions