The term “survival of the fittest” means the organism that is ___ will survive. A) Fastest
B) Biggest
C) Most adapted
D) Smartest

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.

In the figure below, which letter points to the structure through which water is lost during transpiration?

What is the next step in muscle contraction after the actin changes shape?