Dinosaurs roamed eararth during the
a. precambrian
b. paleozoic
c. mesozoic
d. cenozoic

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

What is the inability of an individual or a society to achieve a minimum standard of living known as ?

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.