How are tumor cells different from normal cells a: mitosis is not regulated in tumor cells b: tumor cells use meiosis to replicate c: tumor cells are haploid and other cells are diploid d: there are no chromosome in tumor cells

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.