Biology, Pages 58-67
Biology in clear, easy-to-read language
Biology is a comprehensive life science program for your reluctant readers and those who require additional help to grasp basic biological and life science concepts. This full-color, easy-to-read textbook addresses all these needs.
Written to meet national guidelines, students learn about classification and organization; patterns of reproduction, growth, and development; the human body's systems; ecological cycles; and other basic biological building blocks.
Lexile Level 840 Reading Level 3-4 Interest Level 6-12
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The overall percentages of the major elements of life - C , H , O , N , S , and P —
are quite uniform from one organism to another . Because of carbon's versatility ,
however , this limited assortment of atomic building blocks , taken in roughly the ...
Different species of organisms , and different individuals within a species , are
distinguished by variations in their organic molecules . Since the dawn of human
history , people have used other organisms as sources of valued substances ...
Hydrocarbons are the major rophobio components of petroleum , which is ad
called a fossil fuel because it consists of the partially decomposed remains of
organisms that lived millions of so years ago . so ved Although hydrocarbons are