The seminal fluid you call "pre sperm" has no living matter, sperm cells will survive for a short while on skin.
No, it is not possible to survive without skin. Skin serves as the body's first line of defense against pathogens, helps regulate body temperature, and prevents excess water loss. Without skin, the body would be extremely vulnerable to infection and dehydration.
because they have thick skin
Without skin on your face, you would probably die from infection.
Lice need to feed off of human skin to survive, because they are parasites and can only survive off of another being. It is a common misconception that they can survive alone. Without a site of human skin to feed off of, lice will only survive for 48 hrs and then they will die.
by having a thick layer of skin they can survive up to -37 degrees
by having a thick layer of skin they can survive up to -37 degrees
about 57%
so they don't dry out or get dehitraited
Of course skin has proteins, how else would we survive? The sun and many other sources of things give our skin alot of protein.
It's skin!
Like all insects, they breathe through their skin.
yes theydo