Which body system is primarily responsible for transporting oxygen, carbon dioxide, nutrients, and waste throughout the body?

The number of living organisms in a particular area is

What is the 77 element on the periodtic table

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.