What is the primary feature that distinguishes an open circulatory system from a closed circulatory system?

  • A
    Presence or absence of a heart.
  • B
    Whether the blood flows through vessels or into open body cavities (sinuses).
  • C
    The type of respiratory pigment present in the blood.
  • D
    The presence or absence of blood cells.

Explore More

Similar Questions

Which of the following animals possesses two distinct circulatory pathways?

Which of the following statements is correct regarding human circulation?

What is the significance of the hepatic portal system in the circulatory system?

Which circulatory system is absent in humans?

Which vessel carries sugars from the digestive system to the liver?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo