What value should you calculate when pka2 and pkb2 are added together?

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum

The fact that the total amount of energy in a system remains constant is a(n)

Why is the bottom layer of a trophic pyrimid the