ASK ME ANYTHING 😍😍😍

Some time ago when I started reading the book, I found some interesting information in the book and there are many things to know about it.Such as,

"WHY IS BLOOD RED???

"blood is red because most of its cells are packed with a red-coloured substance called haemoglobin.using this,the red blood cells pick vital oxygen and deliver it to the body's cells.to achieve this and other roles,such as removing waste,blood is pumped along blood vessels by the heart. "

Collected by:aks me anything book