biology vs skeleton

biology

noun
  • The structure, function, and behavior of an organism or type of organism. 

  • The study of all life or living matter. 

  • The living organisms of a particular region. 

skeleton

noun
  • The system that provides support to an organism, internal and made up of bones and cartilage in vertebrates, external in some other animals. 

  • A client-helper procedure that communicates with a stub. 

  • The vertices and edges of a polyhedron, taken collectively. 

  • A very thin person. 

  • A frame that provides support to a building or other construction. 

  • The network of veins in a leaf. 

  • A type of tobogganing in which competitors lie face down, and descend head first. 

  • A very thin form of light-faced type. 

  • Reduced to a minimum or bare essentials. 

  • An anthropomorphic representation of a skeleton. 

  • The central core of something that gives shape to the entire structure. 

How often have the words biology and skeleton occurred in a corpus of books? (source: Google Ngram Viewer )