THE ULTIMATE GUIDE TO SEX

Hepatitis A, an infection that affects the liver, spreads through contact with infected poop. You dirilik get it during oral sex if you touch or lick your partner's anus, or if you don’t wash your hands after touching the anus. In the nematode Caenorhabditis elegans, most worms are self-fertilizing hermaphrodites with an XX karyotype, but occasi