Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.1
Points
2.0
Fiction/Nonfiction
Nonfiction
Word Count
9328
Points per Word
0.000214
Page Count
48
Points per Page
0.041667
Series
Class of Their Own
Description
This book examines the diverse Archaea domain and the division of these organisms by their unusual biology into three main groups. It also explains why little in general is known about them, and why further classification of Archaea is so difficult.