Which Statement About the Crustacean Circulatory System Is False

question 10

Multiple Choice

Which statement about the crustacean circulatory system is false?

• A) A heart is usually present.
• B) Blood is pumped out of openings in the heart called ostia.
• C) Blood is pumped out of the heart into arteries.
• D) Crustaceans have a single-chambered heart.
• E) The heart is stimulated to beat by nerve impulses.

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