need help ASAP i will give 50 pts do not really need an explanation i just have no time and i need it done soon i will research after

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.

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil