WHAT IS BLOOD?

HOW DO RED BLOOD CELLS WORK?
PART I


HOW DO RED BLOOD CELLS WORK?
PART II


HOW DO WHITE BLOOD CELLS WORK?

WHAT DO PLATELETS DO?
PART I


WHAT DO PLATELETS DO?
PART II


HOW DOES ONE PERSON'S BLOOD TYPE DIFFER FROM ANTOTHER'S?
PART I


HOW DOES ONE PERSON'S BLOOD TYPE DIFFER FROM ANTOTHER'S?
PART II


WHAT CAN GO WRONG?

IS HUMAN BLOOD DIFFERENT FROM ANIMAL BLOOD?