What Is Blood? Blood is one of the essential parts of the body. It is a fluid that circulates in the body. It helps to transport oxygen, and nutrients, to various cells and tissue of the body. Blood consists of plasma, blood cells and platelets….Read more
Our Immune System The immune system defends our body against infection means it protects our body against outside invaders like bacteria, fungi, viruses, and toxins (chemicals produced by microbes). The immune system is a network of biological processes and protects our body from diseases. Without…Read more
