Ions play an important role in many of your body's processes. two ions are pumped in opposite directions across the membrane building up a chemical and electrical gradient for each. these gradients can be used to drive other transport processes. what are these two important ions?

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

The table below shows the number of foot bones in some horse fossils.horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

Which best describes what you will do in the reaching your academic potential course?