Whic of these organisms have no transport system?

• Bear

• Amoeba

• Duck

• Corona virus

Importance of transport system

• Carry nutrient and oxygen to the body cells and eliminate waste products from the body cells

• Carry carbon dioxide and hormone to the body cells and eliminate oxygen fromt he body cells

Amphibians have ...............................

• Incomplete double circulatory system

• Complete double circulatory system

• Single circulatory system

Which blood vessels carry oxygenated blood?

• Aorta

• Vena cava

• Pulmonary vein

• Pulmonary artery

How many chambers does the human heart have?

• 1

• 2

• 3

• 4

Function of the heart

• To pump water to the whole body

• To pump blood to the whole body

• To increase blood pressure

• To lower blood pressure

Bicuspid valve is located in between ..................

• Left atrium and left ventricle

• Right atrium and right ventricle

Which pathway of blood flow is correct?

• Left ventricle > Aorta > Right ventricle > Pulmonary vein

• Right atrium > Right ventricle > Pulmonary artery > Lungs

• Vena cave > Lungs > Right atrium > Left ventricle

Which is systemic circulation?

• Heart > Body tissues > Heart

• Heart > Lungs > Heart

Blood consists of ................ plasma and .................. body cells.

• 55%, 45%

• 25%, 75%

• 40%, 60%

• 90%, 10%