Can you live without endothelial cells?

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.

As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?

Why do you suppose the structural polysaccharide cellulose does not contain branches?