Sex is biological condition that distinguishes male to female, both rational and irrational beings. In plants, the male is represented by the stamens and female by the pistil. The unisexual being is the most widespread in nature but there are agencies hermaphrodites, which contain both sex.
Hiv positive makes everyone worried for a while. Many people who have been infected have few or no symptoms of hiv initially and hence testing is the only definite way to know if a person is infected with HIV.