Proteins act as and to maintain proper ph in blood by picking up or donating hydrogen ions.

How can you approximate the number of calories required to keep you in energy balance?

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?