We are created for pro-creation. Having two opposite sexes is the most efficient way to accomplish this.
static
A sex-linked trait is a trait governed by genes on only one of the two sex chromosomes.
Liquid
Two elements that commonly occur in nature as liquids are mercury and bromine. Mercury is a naturally occurring liquid metal, while bromine is a non-metallic element that exists as a liquid at room temperature.
sulphur
There is the kind where two people of the same sex get married, and then, that's about it. There is only one kind of same-sex marriage.
There is not only one: both Turkey and Russia are considered part of both Europe and Asia.
Oxygen is a pure substance. In nature, free oxygen exists as a molecule of two oxygen atoms covalently bonded, O2.
it depend did you have sex
Bromine and Mercury
The postulate that pertains to a line is:For any two points there exists only one line.
No, this mechanic only exists in Mario kart double dash.