What do you mean Cellular activity?

How did the rings form? What are some biotic factors in north America? What effect does the temperature have on solution rate? The West Indies islands draw many tourists and cruise ships because of the weather and their close location to the U.S.? Disadvantage of the English system of measurement to metric system of measurement? Where is terracing most useful? What is empty shell family? What does a dull luster look like? Why is convergence reflex important? What happen when ferrous sulphate solution is store in aluminium can? How many hurricanes have hit Honduras? Which states or phases of matter has a density that varies that the most? What is a line joining places with the same humidity? Why teflon somewhat behaves like a thermosetting polymer? Is mercury magnetic? What is genius level IQ? A thich waxy coating on the leaves of some desert plants most likely permits the plants to what? What is the weather usually like in Tennessee? What are different examples of a person's blood type? Do eggs drop blood sugar levels way below normal everytime I eat an egg my blood sugar level drops to the low 40's?

What do you mean Cellular activity?