Which of the Following Does Not Characterize Open Circulatory Systems

question 167

Multiple Choice

Which of the following does not characterize open circulatory systems?

• A) They include a heart that moves extracellular fluid through vessels.
• B) Fluid may return to the heart through ostia.
• C) They are present in small aquatic vertebrates.
• D) They are found in arthropods and mollusks.
• E) Hemolymph percolates through tissues.

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