Mammals are said to have a "double circulatory system". This means

  • A
    That the blood vessels are paired
  • B
    That there are two types of blood vessels attached to every organ; an artery and a vein
  • C
    That there are two systems; one from the heart to the lungs and back to the heart and other to and from the rest of the body
  • D
    That the blood circulates twice as quickly

Explore More

Similar Questions

Double circulation occurs in

Which is the correct path for pulmonary circulation?

In amphibians and reptiles,the $A$ atrium receives oxygenated blood from the gills/lungs/skin and $B$ atrium gets the $C$ blood from other body parts. Choose the correct option for $A$,$B$,and $C$.

When a vein,instead of carrying blood directly into the heart,first carries it to an intermediate organ like the liver,it is known as:

The figure shows blood circulation in humans with labels $A$ to $D$. Select the option which gives correct identification of label and functions of the part.

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