Which is an extreme disturbance to any ecosystem? A. coral bleaching
B. hurricanes
C. extreme temperature change
D. elk overgrazing

What are the three types of counseling established by marine corps policy?

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.

The diagram shows a chicken embryo and a human embryo