Which of the following features need to be identified to draw an electron dot diagram? total number of electrons
valence electrons
atomic mass
number of neutrons

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.