4. The specific reactants that an enzyme acts on are called OA catalysts
B proteins.
с substrates.
amino acids.
о
D

Depending on the organism the number of in a cell may change

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

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.