Fill in the Blanks DescriptionsOnline version Complete the descriptions with the known words by Pablo Castillo 1 The is the main part of the human skeletal system . 2 An is someone from whom you are descended . 3 The is the most powerful piece in a game of . 4 A allows us to type messages or write on a computer . 5 is crucial for survival and should be balanced and healthy . 6 The of a is often determined by their cultural and biological background .