Why would stromatolites rebound to levels higher than before the end Permian extinction?

(A)there was a worldwide decrease in mud influx to oceans

(B)other burrowing organisms went extinct

(C)they were able to scavenge on the detritus of other dead organisms

(D)sea levels stabilized dramatically for many tens of millions of years

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