Welcome to a School without Walls
You must have seen the police trying to find finger prints at a crime scene in a movie. This is because every person's fingerprint is unique. No two persons have the same fingerprints not even twins. That is why the fingerprint has become the means of personal identification.Read more here
Now that you know, you get you
skin colour from a pigment formed in our skin called Melanin. What
happens if the skin stops producing this pigment? Or what happens if
the skin produces too much of this Pigment? Read here to learn more.
You may assume that all humans and for that matter even mammals have the same type of blood. But nature and science is extremely fascinating. We actually all have different type of blood. Blood type or blood group is a medical term. It describes the type of blood a person has. It is a classification of blood based on the presence or absence of antigenic (read up on this term) substances on the surface of red blood cells (RBCs). Lets find out more. Watch here