B. Carbon fixation begins the Calvin Cycle.
The answer is true and not false
<span> Descriptive theories help direct specific nursing activities</span>
It would have 20 protons, 20 neutrons, and 20 electrons. Protons and electrons are USUALLY (I say usually because of the different types of atoms) the same as the atomic number. To find neutrons you take the atomic mass minus the atomic number. 40-20=20
