Motorcyclists ride through Moscow to mark end of motor season

What is the primary focus of the introduction section?

• The diseases related to blood

• The concept and significance of blood

• The future of blood studies

• The history of blood research

Which component of blood is responsible for oxygen transport?

• Red blood cells

• White blood cells

• Platelets

• Plasma

What is the main function of white blood cells?

• Carrying nutrients

• Fighting infections

• Clotting blood

• Transporting oxygen

Which component of blood helps in clotting?

• Plasma

• Platelets

• Red blood cells

• White blood cells

Why is blood important for the human body?

• It regulates body temperature

• It stores energy

• It transports nutrients and oxygen

• It provides structural support