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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Compare , for example , the two pentanes in Figure 4.7a . Both have the molecular formula C3H12 ,. 25.
The skeleton is straight in one form of pentane but branched in the other . We will examine three types of isomers : structural isomers , geometric isomers ...
There are o only three pentanes ( two are shown in Figure 4.7a ) , but there are 18 wangi variations of C3H18 and 366,319 possible structural isomers of ...