Which of the following is NOT a function of the kidneys?
a. maintenance of acid-base balance of the blood
b. maintenance of plasma osmolarity
c. exchange of oxygen and carbon dioxide with the tissues
d. maintenance of electrolyte balance in the body

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

Describe two recent or ongoing space missions.

Match each medication with its description.