The lab procedure involves two trays of plants. select all factors below that are  the same(constant) for both trays. the remaining factors are the variables of the lab procedure. amount of water given to the plantsgrowth of the plantspresence of worms in the soilenvironment of the plantsthe amount of sunlight given

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