When the ph of the extracellular fluid drops, the kidneys a. excrete more hydrogen ions. b. excrete more bicarbonate ions. c. excrete fewer bicarbonate ions. d. secrete more hydrogen ions and more bicarbonate ions. e. secrete more hydrogen ions and fewer bicarbonate ions?

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Rays from the sun are not considered matter true or false