Hybridization .

1.occurs frequently in nature
2.is the process of gene combination in a lab
3.usually produces offspring that cannot reproduce
4.creates genetically identical offspring

The answer is number two here is an explanation of why I said number two

In chemistry, orbital hybridisation is the concept of mixing atomic orbitals into new hybrid orbitals suitable for the pairing of electrons to form chemical bonds in valence bond theory.

Tolerance to high levels of salinity