Blood circulation was discovered by

Blood circulation is open in

Fill in the blanks: The circulation of blood was discovered by ______________________.

Fill in the following blanks with suitable words : Circulation of blood was discovered by …..................

Blood capillaries were discovered by

Blood circulation in insects :

The ABO blood group was discovered by _________.

The study of blood circulation system is called

The study of blood circulation system is called

Rh blood group was discovered by