If you go a bit overboard and feel a sudden pinch and you start bleeding, It means that something penetrate in your skin and torn off your blood vessel so that you start bleeding.
May be there was any pin or sharp needle thing was there in board that pinch into your skin and your epidermis could not resist that and it is no longer intact and you created a wound on your skin.
Epidermis the surface epithelium of the skin of an animal, overlying the dermis. and in this case it is wounded by that pin.
Xeroderma pigmentosum arises as a result of the cell being unable to correct lesions induced by UV. This can be as a result of mutations in the enzymes which include XP A-E needed for correction of the lesions. Failure to correct these lesions leads to their accumulation and then damage to the cell.
J Solar flares disrupt radio waves and electronic communications.
Explanation:
The storms of a flare when it hits earth cause interference electric-wise high up in the earth's atmosphere, and this can cause disruptions in signals like on radios, etc.
Traits are determined by genes. A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.
