Most living things need oxygen to survive. you breathe in oxygen and it is carried to this organ. here the red blood cells pick up the oxygen and carry the oxygen to all the body cells that need it. what is this organ? a) diaphragm b) heart eliminate c) lungs d) trachea

Which of the following best describes the purpose of technology?

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

Which best describes carbon dioxide’s path out of the body