2. What happens to the nucleus of an atom when the atom is involved in a chemical reaction? *
O It gains or loses electrons.
O It gains or loses protons.
O It gains or loses neutrons.
0 It does not change.
Lant

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.