Many plants grown in hawaii cannot be grown in the united states because of
competitive factors
physical factors
geographic features
photosynthetic features

Contrast how pollination is different among gymnosperms and angiosperms.

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

The activity of the modern sample is 1.10 bq . how long does that measurement take?