The Cell Map is a learning tool developed by Marcy Osgood and Karen Ocorr, the authors of the study guide companion for Lehninger. a. True
b. False

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium