The immune system is our body’s natural defense network. It keeps us safe from harmful bacteria, viruses, and other pathogens. To do this effectively, it uses a division of labor, where different cells and organs have specialized roles. Let’s learn…
Blood is one of the most critical components of the human body. It carries essential nutrients, hormones, and oxygen to different parts of the body, and it also helps in removing waste products. But, did you know that not all…
The ABO blood group system is a classification system used to categorize blood types based on the presence or absence of certain antigens (proteins) on the surface of red blood cells. The system is named after the three antigens involved…