In the living world, there is a great deal of genetic variation. The genetic information of dogs differs from the genetic information of cats; the genetic information of plants differs from the genetic information of bacteria; the genetic information of a child differs from the genetic information of his or her father; and so on.

Which of the following is least likely to be a source of genetic variation among living organisms?

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla