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Atoms of the same element that vary in the number of neutrons and atomic mass are called _________________.

  Mites, ticks, and lice all  

Fructose, glucose, and galactose all have the same empirical formula, C6H12O6, yet they have different functions in cells.  This is possible because these molecules are _________________.

Which of the following chemical reactions represents cellular respiration?

  Fungi obtain nutrition by  

In organic molecules, small monomers are the building blocks of large _________________.

  The phylum that contains lithotrophs and photosynthesizers is  

  The Baltimore model of classification is based on classifying genetic information as  

  Which of the following is NOT an example of a positive role that bacteria play in an ecosystem?  

  West Nile virus is capable of infecting many different organisms (humans, birds, raccoons, and so on). This information indicates that West Nile virus