yes, it is water proof
Humans have water proof skin and that is why we cant breathe through it.
Nothing - peoples skin is water (and blood) proof.
sebum is an oily substance that to keep your skin soft and water proof
Reptiles have a water proof skin covered with scales. Mammals have a skin covered in fur or hair.
Yes, the skin of amphibians is not water proof and will dry out (and kill the animal) if there is not enough moisture in the environment.
Yes, fingers and toes can wrinkle after prolonged exposure to seawater due to the outer layer of the skin absorbing water. This wrinkling is believed to be an evolutionary adaptation that helps improve grip on wet surfaces.
Keratin is a protein that your hair, nails and outer layers of your skin are made of. This is a protective barrier and water proof.
yes they are water proof
NO,your skin is waterproof,oil-proof and paint-proof etc.(unless,you ignite the oil,which would be STUPID)
no rock is water proof if a rock get hit with water it does erode so no rock is water proof
The vast majority of plastics are water proof, they are rendered or made not water proof on purpose.
yes they are water proof