Circulatory System Quiz

Which of these are the organs of circulatory system?

• Heart

• Blood

• Blood vessels

• All of these

Blood is red in colour due to the presence of?

• Carbondioxide

• Haemoglobin

• None

The heart rate of a healthy adult per minute is...

• 50-60

• 40-60

• 60-90

• 50-100

Double circulations is seen in?

• Humans

• Ants

• Worms

• Butterflies

The organ system that helps to transport materials in the body.

• Respiratory system

• Digestive system

• Circulatory system

• Nervous system

Tube like structures through which blood flows?

• Blood vessels

• Heart

• None