The phoshorous cycle differs from the carbon cycle in that: none of the above the atmosphere does not contribute to part of the phosphorus cycle plants play a role in the carbon cycle, but have no role in the phosphorus cycle there is little or no human impact on the phosphorus cycle phosphorus is not a critical component of living organisms

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

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

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide