The total number of atoms of each element is not changed during a chemical reaction.

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

How does a gymnosperm prevent itself from pollinating the same tree

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