The answer to this is the last option i think
Scientist believe that the earth has a spinning core which creates a magnet for the earth
False let me know if you would like me to explain.
Differentiation->Fertilization->Gamete Production-Mitosis
<span>Fertilization->Differentiation->Gamete Production->Mitosis </span>
<span>Gamete Production->Fertilization->Mitosis->Diff... </span>
<span>Mitosis->Fertilization->Gamete Production->Differentiation </span>
Electric and mechanical energy
