Where does the oxygen/carbon dioxide exchange take place in the human respiratory system? please help me! A. bronchi
B. diaphragm
C. trachea
D. alveoli

Ateam from new york presbyterian hospital is conducting a study about a recent increase in cases involving both excess sweating and kidney stones. what would the team need before it draws a conclusion about the cases? medications that are specifically designed to treat the sickness machines that are built to process blood and reduce symptoms until patients are healthy again data that profile the various patients who report these symptoms proof that the excess sweating is related to the excessive kidney stones

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

Number and variety of living organism; includes genetic, species, and ecological types