Biology·MCQ Practice
Open Circulatory System — MCQ Practice
NEET UG
Version 1Updated 21 Mar 2026
Interactive MCQ Practice
Test your knowledge. Click “Solve” to reveal options, select your answer, then check the result. 6 questions available.
Q1easy
Which of the following animals possesses an open circulatory system?
Q2easy
In an open circulatory system, the circulating fluid is called:
Q3medium
Which of the following is NOT a characteristic feature of an open circulatory system?
Q4medium
In insects, oxygen transport to tissues is primarily handled by:
Q5medium
Which of the following phyla contains organisms that are an exception to the general rule of having an open circulatory system within that phylum?
Q6medium
Which of the following statements correctly describes the flow of hemolymph in an arthropod's open circulatory system?